PART I MEN AND BIRDS IN JOINT OCCUPATION OF How shall man and beast be reconciled in conflicts and disturbances which inevitably arise when both occupy the same general area concurrently? As man is at once poser of the question, arbiter in the arguments, and, above all, himself the executioner, his verdict will be determined directly by the use or uses he wants to make of any particular area and the order in importance to him of those uses. Whatever the designated use of an area, the desired relationships between human and animal occupants are difficult to establish. I believe from observations to date that it is justifiable to state the general proposition that the more man desires to preserve the native biota, the more complex become his problems in joint occupancy. The opposite extremes would appear at first thought to be exemplified in the business district of a large city and a site that is set aside as a primitive reserve. In the crowded downtown district, nearly all vertebrate wildlife disappears. If one of the surviving species causes inconvenience to any ponderable group of the inhabitants, the prime objective of land use for that site automatically dictates that this species, too, must go. In the instance of a true primitive area, man's estimate of the greatest values to be obtained from the sum total of resources on that areaand by that I mean values for himself, of course, there being no other standarddictates that he shall impose such restraint upon himself as to shun the area entirely or almost entirely. Because man here, in choosing to forego his share in joint tenancy of the land, side-steps the problem entirely, this is not an adequate example. Turning to the national parks, we find ideally exemplified the extreme case for which we are seeking, for here the law specifying land use permits neither the impairment of primitive wildlife nor the restriction of human occupancy. At one bold stroke, man has assumed the whole difficult problem in its most complex form, not really as a problem at all, but as a thing accomplishedand all this by high governmental decree. Section I of the act of August 25, 1916, to establish a National Park Service says, in part:
Countless times it has been pointed out that here was an inconsistency in a first premise; that a lion and a fawn were being asked to share the same bed in amnesty; that ice and fire were expected to consort together without change of complexion; in short, that the vast American public should be brought to the parks for a vacation without disturbance of the pristine loveliness of these sacred areas. A modern Portia, this lawgiver:
The National Park Service, springing into being with a thousand exigencies to meet and no time to gaze at the mountain and resolve paradoxes, accepted its charge in the spirit of a Casabianca ready to die for an impossible order. Latterly, however, it has lifted a determined hand to shape a course that will accomplish the seemingly impossible. For, after all, the history of civilization all along the way has been a record of that done today which seemed improbable yesterday, impossible the day before, and not even to be imagined in fools' dreams the day before that. And so now we find man and animal in joint occupation of the national parks, each armed with his full guarantee of rights. How shall both be reconciled in the resulting conflicts? Where mammals are concerned, the relationships are so ramified and complex as to give pause to the most optimistic worker. Relations between men and birds in a national park, however, are so much simpler that this aspect of the picture is really bright with promise. Some idea of what the problems of birds and men in competition in the national parks arewhat is being done to meet them, and what the ornithologist may hope for the future in these last stands of the primitive American wildernessmay be gleaned from the following short accounts of problems that have already developed or are anticipated. First may be mentioned those situations in which birds are offenders. To date these are few and they should never be numerous or difficult of solution. The reveilles of California woodpeckers have at times rudely awakened guests of the Ahwahnee Hotel in Yosemite, and the resulting complaints were once sufficient occasion for the death sentence. Needless to say, this practice soon stopped. Again in Yosemite, campers' fare left on tables is frequently eaten or spoiled by western tanagers or Steller jays. It may tax the reader's patience to have such trivial matters classed as problems at all, yet it is amazing how many persons will come to sob on a ranger's shoulder begging for justice in the name of omnipotent "Uncle Sam" and the National Park Service, to wreak stern vengeance on some small feathered "nuisance". There is one type of complaint against birds in the role of adversaries to man's interests that merits serious consideration. This occurs wherever birds are predatory upon game fish. In Yellowstone, a colony of white pelicans numbering approximately 300 birds live upon the spotted trout of Yellowstone Lake and adjacent waters during the breeding season. In many parks, notably Glacier, Yellowstone, and even Sequoia, American or red-breasted mergansers have been objects of condemnation. In Yosemite, kingfishers have raided the fish hatchery. There are other instances and certainly many more species of birds, including the beloved water ouzel, that take a toll of game fish, but the ones mentioned seem to he chosen targets for the shafts of the fishing fraternity. The reason why, in the opinion of some persons, fish predators as a group stand alone in being inimical to man's interests is obviously that fish constitute the only crop which man harvests in a national park. The fair principle of give and take shows the way to a satisfactory solution to problems of this type. In return for the special privilege which is his in being permitted to take fish in park waters when the hunter is denied, and even the flower lover must not touch, and also in compensation for robbing the fish eaters of their normal food supply, the fisherman must be content to restock the stream for the benefit of all. This general policy has been adopted by the Service. In cases of unusually heavy losses, such as occur where a bird or family of birds systematically raids a rearing pond, special protective measures can be devised, or, as a last resort, the individual offender killed, still without altering the status of that species within the park. In a second category among the conflicting interests of occupation are those in which the park residents and visitors exert an adverse influence upon the bird life. Here we find a more imposing list of disturbances already occurring, with the possibility of others to come. Man with good cause finds it essential to his enjoyment of certain of the parks to employ mosquito-abatement measures. The only effective yet economical method so far developed is to spread crude oil over stagnant waters. In Yosemite, a considerable annual toll of bird lives, notably robins and blackbirds, is the price paid, not to mention possible loss of habitats important to some species, and impairment of aesthetic values. The loss of bird life could conceivably reach serious proportions in some of the newer park projects, should either draining or crude oil application be the methods used. When the Florida Everglades project is realized, either the visitor will have to bear the discomfort of mosquitoes or leave the swamps to the birds. Elsewhere the birds must pay the price, unless some innocuous and practicable method of mosquito abatement is invented. In Yosemite, in 1928, several band-tailed pigeons died from taking poisoned grain set out for rock squirrels around the Government barns. This type of difficulty already has been eliminated for all time, since the use of poison is now definitely prohibited within all parks, barring some emergency such as a rodent-carried epidemic of human disease. Destruction of birds by moving vehicles fortunately occurs but in small degree, though occasionally owls and nighthawks meet death in this way, and at least one golden eagle in Yosemite was doomed as the result of striking a car radiator when frightened from the carcass of a deer which itself was an earlier victim of a highway accident. It may develop in the future that some rare and slow-moving bird will have its status definitely impaired by losses occurring in this way. In the mammal world there is the striking example of the gray squirrel colony near the foot of El Capitan. This was apparently the only remaining colony in Yosemite Valley after the great epidemic of 1920, and for a number of years practically all of the potential increase was accounted for as automobile fatalities. Then there is always the possibility of birds flying into wires. No specific instances where this has occurred within a national park to the detriment of any one species comes to mind, but under certain conditions such a complication may arise. In desert parks, such as the new Death Valley Monument, where the water from a single spring may be vital to a part of the bird life of many square miles, and where developments to accommodate the influx of thousands of tourists may either preempt or obstruct the original availability of such water, the avian as well as the mammalian fauna will suffer. A little forethought in conserving the water to make it available at places removed from too much disturbance should successfully preserve values which might otherwise be lost. There are two classes of birds which are unable to tolerate man's presence, at least insofar as joint occupancy of their breeding grounds is concerned. These are colony-nesting birds and large ground-nesting birds. The white pelican is a striking example of the former. Trespass on a breeding island, if permitted to any extent, may have any one of the following effects: Driving the birds off in the heat of the day may result in the cooking of the eggs. Prolonged absence from the nests during cold weather or at night will allow chilling of the eggs, with consequent destruction of the embryos. While the parent birds are off, gulls may eat the eggs. Young pelicans congregate in pods; if frightened they trample each other in the rush to escape, with many resultant deaths and injuries. If the nesting island is disturbed too frequently, the colony may desert and never return.
The sandhill crane is an example among large ground-nesting birds. These birds are so shy that the constant presence of people, such as fishermen tramping back and forth, often causes them to abandon the locality or fail to bring off their young. Only two eggs are laid, and even the sudden rising of the brooding bird when frightened may cause an egg to be kicked out of the nest. How the difficult relationships involved between park visitors and birds of the two classes mentioned above are being resolved in the minds of students of park wildlife problems is seen in the following excerpts from the report of Frederick Law Olmstead and William P. Wharton on the Florida Everglades proposed park:
A third category of problems in securing the desired values from joint occupancy comprises the numerous situations in which man's presence operates inimically to his own enjoyment of wildlife values. The relationship sought is one in which the greatest amount of native bird life will be readily accessible to the largest number of visitors over a maximum period of their stay. It becomes evident that birds around development centers and along roads and trails have a much higher use value than those located in spots remote and inaccessible. Thus, while the totality of bird life within the park may not be affected thereby, the clean-up practiced around centers of human occupation and along roads and as recommended for trails as well, will tend to remove certain species from the very localities where there are the maximum opportunities to see them. Standing trees that are decrepit may have the dead wood pruned or be felled, and dead trees are commonly removed from the vicinities of buildings, camps, parking areas, and roads, partly in the interests of safety as they are potential windthrows, partly as a preventive fire protection measure, partly, perhaps, to augment firewood supply, and very largely, it may be suspected, to satisfy a psychological craving. Tidying up is so personally gratifying, and a tidy park labels an efficient administration. In justice, too, to the one who earnestly tries to please his public, the sensibilities of the city dweller, educated to the concept that a park laid out in the city style is the ultimate in park perfection, must be mentioned as a potent influence. Yet one standing snag may be worth more than ten or a hundred living trees in supplying the peculiar habitat requirements of certain bird species. In the national parks of California, screech owls, saw-whet owls, pygmy owls, hairy woodpeckers, willow woodpeckers, white-headed woodpeckers, pileated woodpeckers, California woodpeckers, red-shafted flickers, tree and violet-green swallows, red-breasted nuthatches, western and mountain bluebirds, and mountain chickadees are some of the birds that may be affected by this loss of nesting sites and food supply. Crowns bare of foliage are veritable baits for the slower hawks, vultures, band-tailed pigeons, and other birds. If the concentration of these birds becomes less along the beaten paths, it is of little avail that they may be more common in the far places. Even the most energetic hikers perforce spend much of their time in camp, and by far the majority of total visitors checked in at the entrance gates never leave the highways and the places where they stop at night. Nor is this all. There could be recounted an even longer list of birds, this time among the ground- and bush-inhabiting forms, which become increasingly scarce in the very places where people are most apt to see them, in proportion to the effectiveness of clean-up of downed and rotten logs and of brush piles and litter. Whereas lack of facilities to carry clean-up along roadsides to a logical finish has operated to the benefit of the fauna in the past and hence to the benefit of man in the enjoyment of the park, the future may tell a very different story. Drying up of reservoirs for bird life not only occurs as a by product of clean-up work. The trampling by thousands of human feet in congested areas destroys the habitat of grassland birds; and so the adverse influences multiply. It will be argued that development areas may, on the other hand, favor an increase of bird life. With many important reservations, this is true, particularly of the public camps. Yet the species favored are usually those aggressive forms so well represented by the members of the jay tribe, whose presence in unusual numbers will, in turn, cause smaller birds to seek a more peaceful life elsewhere. But this leads out of the field of direct influences of human and bird populations upon one another into the multifold complexities of indirect influences. Research has as yet uncovered next to nothing in this virgin exploring ground, and we cannot even guess what trends in wildlife administration for national parks will be indicated when at last the factual basis shall be spread before us. In review of the foregoing facts and postulations, it is the writer's opinion that the first two categories of problems arising out of joint occupancy (namely, those in which man affects the birds adversely and those in which this order is reversed) include but a few maladjustments and that these will be resolved successfully. The third category, covering those relationships in which man's presence operates to the detriment of man's use of the wildlife values, presents many more difficult problems; but their solution is by no means hopeless. A widespread appreciation that the problem exists is the first and most important step. This is already being realized, and the foundations of approach and practice, too, are in the mixer. Can it be done? As indicated earlier in this paper, in all other fields of science nearly every triumph has been attained in the face of downright opposition. The way must be found to reconcile the conflicts arising from joint occupation of the national parks by men and animals without impairment of any major park value.
Joint occupation of national parks by animal and human populations is prescribed by the organic laws which define national parks. Maintenance of wildlife in the primitive state is also inherent in the national-park concept. The conclusion is undeniable that failure to maintain the natural status of national parks fauna in spite of the presence of large numbers of visitors would also be failure of the whole national parks idea. Further, since the feasibility of preserving the aggregate of primitive wildlife on unit areas anywhere in the United States has become the center of debate between constructive idealists and vociferous defeatists, the national parks, because they represent the problem in its most complex form, have become the test case. Today, when so much attention centers on conservation based on land classification and the development of management practices designed to restore each class of land to its fullest wildlife productivity, it will be worth while to review the problems which have developed in maintaining the fauna of the national parks in a primitive state, with particular reference to those that are peculiar to them as against other kinds of wilderness reservations. Though no categorical distinctions can be made between types of problems since there are interactions throughout and indirect influences hardly guessed at as yet, still it is evident that park faunal problems arise from one or more of three basic causes. These are: First, adverse early influences which operated unchecked in the pre-park period, and continued into the early formative period; second, the failure of parks as independent biotic units by virtue of boundary and size limitations; and, third, the injection of man and his activities into the native animal environments. The first two are common to all areas wherein it is desired to maintain the primitive. Moreover, they have this in common, that we may look forward hopefully to the correction in large measure of the problems which they developed. Consider, for example, some of the type problems under these two causes. As the results of adverse earlier influences, there are problems in the reintroduction of extirpated species, restoration of species reduced to the danger point, rehabilitation of depleted habitats, and management of species become abnormally abundant because of removal of their normal controls. As the results of the failure of the parks to be self-contained, self-walled biological units, typical maladjustments are lack of winter range, ebb-flow of animals that are blacklisted outside the park areas, invasion by exotics, dilution of native species through hybridization, and exposure of natives to the diseases and influences of alien faunas. All the problems mentioned and others referable to the same two causes are recognizable as being common to primitive areas generally. Ideally one can hope that actual cures will be effected as these problems are analyzed and effective treatment evolved and applied. The third class of problems, howeverthose arising out of joint occupation of the areas by men and mammalshas the dubious distinction of being the incurable. In the instance of adverse earlier influences the cause of disorder was removed when the area became effectively a national park. It only remains to undo now the damage that was done before. Where the park is an adequate biotic unit, addition of the proper areas and revamping of boundaries to follow natural faunal barriers will bring permanent removal of the basic difficulty. Progress on this front has been slow, but the adoption of a sound Nation-wide wildlife restoration plan based on planned land use should give it a great impetus. The presence of people, and in fact of as many people as wish to come to the park, is a condition which cannot be altered; therefore the problems arising therefrom are to be dealt with as something permanent. They demand the development of a compensation technique in wildlife administration which will be put into effect and act continuously. Moreover, as park travel is steadily increasing, the problems are being constantly intensified, and it logically follows that the palliative measures including the restrictions willingly imposed on man by himself must also increase. Though white man is in one sense part of the whole natural environment, one in the aggregate of faunal and floral species constituting the biota of the park, just as are the Indians who came via the Aleutians, and the grasses whose seeds were borne across the ocean, there are two things which set him apart even from other recent arrivals. White man's impact upon his environment is tremendous as compared to that of all other living forms. He is as much like them as cancerous growth is like normal growth and as destructive in effect. The second thing which sets him apart and which is antidote to the first, is his unique ability to appreciate his effect on his environment. He thus becomes capable of self-imposed restrictions to preserve other species against himself. Admittedly, his object is a selfish one, just as it is when he chooses to destroy other species to use them for food, but it is a higher, more altruistic, selfishness. It is selfishness for the benefit of all individuals of his own kind and their descendents after them. And incidentally it is a selfishness which reacts beneficially upon the animals over which he holds power of destruction. The whole national park idea is a manifestation of this second attribute of man, dependent upon his utilization of his environment to his own advantage but in contradistinction to his instinctively normal utilization of land. Within the national parks, man's estimate of the greatest values to be obtained for himself from the sum total of their native resources, dictates that he shall occupy them in such a way as to cause the minimum of modification from the aspect they presented when he first saw them. Man, like any other exotic, cannot intrude upon an area without causing some displacement and modification of the preexistent or primitive state, but the degree of change which he causes may be very great or relatively little. If a scientific study is made to determine how to keep the disturbances to a minimum, satisfactory results will be secured.
Let us examine those problems already known to be traceable to joint occupancy and indicate still others which may be expected. What has been done to study them and provide for their solution and what is planned by the National Park Service for the future? First come those problems rooted in conflict between the more fundamental needs of men and animals in the parks. They are essentially by-products of occupation of common habitats. In the early park period, the livestock concept of wildlife administration prevailed. Predators were controlled, and rangers were permitted to trap fur bearers in winter to eke out inadequate salaries. This is not to be condemned either, for it was consistent with the national parks concept in that early stage of its development. Moreover, at that time, many of the grazing animals were so depleted that first attention had to be given to saving the small breeding remnants. Some of them, such as buffalo, elk, and antelope, were so close to extinction that any action to save them was justifiable. Now that these forms are out of immediate danger with many nuclei established, it is easy to forget that this was not always so. Then, one spoke of campaigning against carnivores as though they were something devilish, just as one did of Huns in the World War and with as little reason. In fact, it was only a few years ago that the principle of equal protection for all species was established. Even from their incipiency the parks recognized that the animal life would have to be protected against certain normal aggressions of civilization. Visitors must not molest the animals. Visitors must not bring dogs or, at the very least, they must be kept on leash. Domestic stock must not be pastured in the park by residents, though this was never considered to apply to riding horses. Such simple precautions seemed enough when parks travel was light and we still labored under the illusion that there were great hidden wildernesses in the West. Later the almost complete decimation of primitive wildlife elsewhere greatly enhanced the importance of the parks as last refuges at the same time that the influx of thousands of visitors raised the question as to whether the park wildlife could stand the pressure. For the first time we began to glimpse the multitude of ways in which the animal and human elements conflicted. Realization of the problem meant the elimination of the. needless harm to animal life which was attendant upon poisoning around barns, burning of meadows, and so on. Maladjustments of this type which are in the accidental class are now corrected as fast as apprehended. They are not the permanent problems in joint occupation. Once all species are given full protection insofar as the right to live their life cycles unmolested is concerned, and park visitors are at the same time enjoined against taking any step as individuals to protect themselves against the animals, problems in animal harmfulness to man arise. Few species are actually dangerous to human life, but some are injurious to property, others to man's special interest in certain natural features of the park, while still others are inimical to his comfort and esthetic senses. The rattlesnake is, of course, a traditional enemy but, nevertheless, a greatly overestimated one. The proper practice is to destroy rattlesnakes when encountered at human concentration points but to permit them to go unmolested elsewhere. Coyotes, rabbits, and squirrels may act as carriers of diseases communicable to man. Epidemic outbreaks of such diseases constitute emergencies abrogating all regular rules and regulations and calling for heroic but temporary and specifically applied local treatment. Among mammals, the various species of bears can be considered as being physically dangerous. Because visitors cannot carry fire arms, this danger is real, and if the park administration protects the bears against the visitors it must protect the visitors against the bears. For this reason, individual bears of bad character are destroyed. But the bear problem is due very nearly 100 percent to the abnormally intimate contacts which human beings have sought to establish with the bears and not to the innate ferocity in bear nature. The subject, therefore, is properly referable to that category of problems involved in the manner of presentation of the visitors to the wildlife and will be treated later. Mammal damage to property is of small significance. Since the offenders are not to be destroyed, recourse must be had to isolating the property from the animals. The real difficulty here comes in inculcating the basic administrative policies so deeply that recourse to this kind of treatment will always be first thought, replacing the instinctive reaction to kill. For example, in Mount McKinley National Park considerable damage is sustained from the porcupine gnawing on buildings. The immediate proposal was local control by shooting. But such an objectionable course was unnecessary. Moreover, since the porcupines of this region migrate locally, serious reduction of the park porcupine population could result from prolonged application of such treatment. At present, the offending porcupines are trapped and moved elsewhere. In all likelihood, a permanent solution to this problem will he found through cooperation with the Branch of Plans and Design of the National Park Service in development of an acceptable porcupine-proofing. This then will become standard for all structures where such damage occurs. Cases in which animals prejudice the comfort of the visitor or abuse his esthetic senses demand the development of similar technique. Where skunks insisted on sharing man's houses with him, they were once trapped and drowned. Now they are trapped and removed to remote sections. It is a safe. prediction that skunk-proof basements will be standard in the future. Where animals prejudice man's special interests in the natural features of the parks, the involvements are greater. The scene of man's special interests is out in the park proper and more often than not in the most sacred areas, whereas the troubles discussed above are usually limited to the development areas, which are exceptions from the remainder of the park area in nearly every way. If a park has been created for the express purpose of preserving an outstanding archeological object, the welfare of that object, including both protection against destruction and presentation in a primitive setting, transcends all other administrative obligations, including that of wildlife protection. Thus, if a hard-hoofed species is hastening the destruction of a ruin, or a rodent is destroying vegetation which is an important part of the ruin picture, there can be no question of tolerating the damage, and the offender must be extirpated from the immediate locality if no other and less objectionable solution can be found. Fencing, for example, would intrude an artificial element in the ruin scene and therefore would be eliminated as a possibility. The inroad of fish-eating mammals upon game fish is detrimental to the special interests of one group of visitors. Nor can we be oblivious to the perfectly understandable hostility of the fish culturist whose business it is to keep the park streams well-stocked. But the logic of the arguments that the fisherman is a privileged character in a national park wherein nothing else but fish can be taken; that, in so doing, he is depriving the fish-eaters of their food supply; and that he must restore fish to the streams and lakes for the benefit of these creatures as well as himself, has been so forcefully demonstrated, that there is no longer any question of controlling species predatory upon fish. For purposes of practical administration exceptions have to be made in the case of individual animals, doing unusual damage around rearing ponds or hatcheries. Finally, since man is superior, and endowed with every advantage, it would be miserable admission of defeat if he could not find ways of solving these simple problems of animal injury to man without resorting to campaigns of destruction which ruin the primitive and impoverish the aggregate of natural phenomena which, in reality, is the park. In turning to a consideration of maladjustments of the reverse order, those involved in the repercussions of civilization upon the wild mammals both by direct effect and indirectly by disturbance of environments, we come to grips with the key problems in national parks administration. Consider first the unavoidable factor of actual physical displacement. All construction projects today must conform to the master plans which specifically limit developments to certain excepted areas. The guiding principle is that all the roads and buildings necessary to the accommodation of both permanent employees and transients shall be compacted into the smallest possible space. Though this technique is in its infancy, rapid progress is being made. Approved practice today often calls for erection of apartment-type dwellings to secure economy of ground space. For better control and to accord with the most advanced scientific thought on the subject, the research reserves program developed by the Ecological Society of America has been adapted to national parks use under a plan proposed by the Wildlife Division of the National Park Service. Under this scheme the whole of the park becomes a primitive area with the exception of certain fixed and well-defined areas to which developments must be limited. The excepted areas include right-of-way for roads and site for camps, hotels, and utility groups. The primitive area, which is the park proper, must remain untouched except for fish culture, trail development, and insect and fire control practices. For scientific study and to serve as control experiments, specific areas within the primitive area may be set aside as permanent or temporary research areas. In these, fish planting is prohibited. To make this program satisfactorily effective, the park should be surrounded by a buffer strip of the maximum width possible, in order to isolate it from external influences. Success of this measure must depend on whether adjacent lands are in public or private ownership and on the degree of cooperation which can be secured. Adoption of this plan will mean reduction of the displacement factor to the practical minimum. In order that neither enjoyment and use of the park nor the primitive status of its wildlife shall be jeopardized, men must live on less and less ground and do more and more journeying forth to see the wildlife. There is ever-increasing restriction on the camping privilege. Before long, no one will camp in the park except in a developed camp site in which the location of car stall, fireplace, table, and tent have all been predetermined by the Branch of Plans and Design. Though such a degree of seeming restriction upon freedom is naturally abhorrent, the parks are our most precious bits of wilderness and must be safeguarded. The vast areas outside the parks provide ample space for those who would camp as they please. In addition to the impingement by large numbers of people upon the faunal habitats, causing a contraction in the total animal populations, there are certain corollary maladjustments which develop. In all of the national parks every bit of available range forage is needed for native game. Both company and Government saddle horses have been given the range needed by the park wild animals for so long that the practice is rooted in tradition and is hard to change. Nor can it ever be eliminated entirely. Nevertheless, a great improvement has been effected by maintaining careful jurisdiction and exercising good range management. Riding horses maintained in the park for visitor use are not brought in until the season starts and are taken out of the park as soon as it is over. Numbers are limited to the demand. And what is more beneficial than anything else, the horses are herded high upon the summer range instead of being allowed to impoverish the critical winter game range. A few species of mammals which thrive on civilization, notably coyote and ground squirrel, tend to increase and spread in the wake of development and, by very virtue of their aggressive characteristics, to impinge upon native forms whose niches they preempt. In such cases, control is clearly indicated. In parks such as Glacier and Yellowstone, however, the coyote, while it is undoubtedly more abundant then formerly, may perform a useful function as a salutary control on herbivorous forms in place of the mountain lion and wolf, which formerly filled that role. Finally, among the problems of joint occupation, there is the large and complex category of problems involved in the manner of presentation of wildlife to the visitor. That there are such problems is due indeed to the very perversion of what should be the relationship between the animals and the visitors. The visitor, instead of seeing animals disjoined from their natural habits and drawn out of their natural haunts to be presented spectacularly to him on as intimate terms as possible and with the minimum expenditure of energy on his part, should in fact be presented to the animals, so as to see them at home behaving primitively in their primitive environments.
Probably the most typical and certainly the best known problem resulting from the manner of presentation is that of bears in Yellowstone. To show how this problem was analyzed and what progress has been made toward its solution, the following excerpts are quoted from Fauna of the National Parks of the United States, Volume I, published in May 1932, by the National Park Service:
In the two seasons which have elapsed since this analysis of the Yellowstone bear problem, certain corrective steps have been taken, and there is immeasurable improvement. Garbage feeding has been eliminated except for the Canyon and Old Faithful bear shows. Back-door feeding of bears and feeding of bears by visitors has been greatly reduced and eventually will be completely eliminated. Approximately 100 troublesome black bears and a very few bad-actor grizzlies have been destroyed. The number of bear complaints reported in the 1933 season was about 60 percent less than for the preceding year. For 1934 an allotment for bear-proof refuse containers and food safes has been secured for one campground. If this experiment proves successful, all campgrounds will be bear-proofed as fast as funds can be made available. Not only with bears in Yellowstone but wherever any animal has been garbage-fed, hand-fed, petted, and tamed, the results have been detrimental both to the animal and to man in the park. Moreover, such practices have no national parks value, since the city zoo can satisfy this sort of human craving far more successfully. If we do not present park animals wild and in their natural background, we do not present a wildlife picture of national parks significance. In arranging for the presentation of the visitor to wildlife it must be remembered that birds and mammals in the immediate vicinities of roads and development areas are of relatively greater value because they are the ones which are most apt to be seen. Roadside clean-up tends to make the part of the park seen by visitors sterile of wildlife. Therefore it should be kept to the absolute minimum. Office orders urging caution to preserve wildlife values in conduct of Emergency Conservation programs have been issued, and close supervision is exercised. Still it is difficult successfully to combat human zeal in making the woods as tidy as possible. The general recommendations calculated to secure the best values to the visitor from park wildlife and at the same time to avoid destruction of the primitive status of that wildlife are that the wilderness be permitted to come up as close as possible to human concentration areas, that park animals be not pauperized or tamed, and that ingenuity be exercised to introduce visitors to the animals' environments without their presence having adverse effects.
RECAPITULATION This country has now been explored and occupied from coast to coast and from Canadian to Mexican boundaries. The haphazard development and cropping of natural resources has proved so enormously wasteful and unproductive of benefit to our citizenry that the future national welfare in this respect has been seriously threatened. Under a reclassification of lands to secure the maximum benefit from each type, wildlife will find some place everywhere. The percentage value accorded to wildlife may be very small in some cases, but it will be considerable for most lands and on some, such as marsh, desert, and rugged mountain types, wildlife values will out rank all others. Conservation thus is seen to be not an end in itself or a creed over which men fight according to personal prejudice, but a means for securing the maximum cropping of natural resources without destruction of the productive capital. The forms of cropping include the realization of sporting, economic, esthetic, and scientific values. Certain areas in public ownership will always be dedicated to the preservation of wildlife in the wilderness condition. Because the modifying influences exerted by human populations would ordinarily prevent the realization of this objective, administrative practices must be developed to correct and prevent modification of the original natural conditions. The national parks are one among the various types of areas which are designated for the preservation of the primitive. Because the parks are set aside both for preservation of natural conditions and for use by the people at large, they have not only to cope with problems resulting from adverse influences and problems of adverse external influences, but they are confronted also with the problems resulting from joint occupation. These problems are of such magnitude that some observers have concluded that only the childish idealist, pathetically blind to the practical obstacles, would attempt to accomplish the thing. There are others who believe the effort is warranted. Much of man's genuine progress is dependent upon the degree to which he is capable of this sort of control. If we destroy nature blindly, it is a boomerang which will be our undoing. Consecration to the task of adjusting ourselves to natural environment so that we secure the best values from nature without destroying it is not useless idealism; it is good hygiene for civilization. In this lies the true portent of this national parks effort. Fifty years from now we shall still be wrestling with the problems of joint occupation of national parks by men and mammals, but it is reasonable to predict that we shall have mastered some of the simplest maladjustments. It is far better to pursue such a course though success be but partial than to relax in despair and allow the destructive forces to operate unchecked. (Read May 8, 1934, at the Sixteenth Annual Meeting of the American Society of Mammalogists, American Museum of Natural History, New York City.)
Days with the birds in Yellowstone are tonic to him whose spirit is bruised by reiteration of the lament that wilderness is a dying gladiator. Too frequent exposure to a belief born of despair is not good for any man. To conservation, it is a poison the more deadly because the injurious effects remain unnoticed until a lethal quantity has accumulated in the system. There is an obvious prevalence of the conviction that perpetuation of primitive wildlife anywhere on this continent is impossible in face of the expansion and intensification of European-type civilization. Neither is it to be denied that this particular defeatism has been a boon to the greedy one who would justify his seizure of the last egg or his eating of the last duck. Honest recognition of all factors operating to destroy the wilderness and of the amount and rate of such destruction is nothing to decry. Propaganda from this source is salutary if accompanied by proper advertisement of the facts, and providing that it is presented as diagnosis with prescription for treatment and not intoned as a funeral oration. The national parks and national monuments and certain designated areas within national forests have constituted the strong line of defense in the conscious determination to preserve representative examples of the primitive wildlife of America. In the beginning we were blithely unaware of the complexities involved in this undertaking, unaware that acts of Congress and ranger patrols were but preambles to the real task of keeping nature natural. The first sharp pain of awakening inducted a sore travail, the taking of inventory to determine the adverse influences, their causes and their effects. From this labor a new principle was born. Henceforth, scientific, planned management would be used to perpetuate and restore primitive wildlife conditions. The earlier protect-and-hands-off policy had abundantly shown it could not accomplish this objective alone and unaided. Even before the birth a spectral wolf haunted the scene. Ever bolder, his howls now make the night one long anxiety, for he shouts to heaven that the baby lives in vain. Small wonder if the nurses whose duty it is to appreciate every hazard over which their charge must triumph and to prepare him for it, now and then grow discouraged. Their heavy task becomes quite unbearable with that added tribulation, the defeatist headshaking of the spectral wolf. Often it is but a small unnoticed shade of change which transforms the pleasant task into burdensome duty. I do not know when the change occurred, but there came a day when the elk bull standing on a much-too-near horizon was no longer the embodiment of wild beauty, no longer a wild animal at all to me, but just next winter's great big problem, a dejected dumb brute leaning on the feed ground, its gums aflame with foxtails and suffering from necrotic stomatitis. It was the fear of fixation in this jaundiced outlook which first suggested a changed diet through study of the healthy elements in the picture instead of so much concentration on the bad spots. The refreshing mental exercise of analyzing observed incidents for their faithfulness to primitive life brought me to these reminiscences of a few among the many hours spent watching the lives of birds in Yellowstone. The Yellowstone-Teton area, roughly speaking, a plateau some one hundred and twenty miles long by sixty wide, of altitude varying from six to eight thousand feet, and encircled by mountains rising from three to six thousand feet above its plain, was one of the wildernesses late in yielding to man's violation. Though the three largest rivers of the country, first roads of exploration, clawed thirstingly at the flanks of the Gallatins, Absarokas, Wind Rivers, Hobacks, and Tetons, the ruggedness of these ranges and their long lingering snows discouraged all but the hardiest scouts like John Colter and Jim Bridger. In the course of time even this land was called upon to yield much from its rich stores of game and fur. The trappers who went in came out laden, yet they told little, as it was not their way incautiously to brag about the best trapping grounds. The game beyond the mountains was nearly annihilated, and much of this was the same game that had summered in luxury on the abundant grasses of the plateau. Then the dude explorers and hunters "Muggses" they were called in their day came to take a share. Protection was only a name in the first years after the park was set aside, and very probably less than that insofar as the game was concerned. Finally, the automobiles, shrieking over fast roads, brought thousands of well-meaning but thoughtless visitors whose very presence would seem paradoxical to the concept of wilderness. In spite of all these vicissitudes, each one of them a fearful impact on the primitive, today the beavers are back by the hundreds, content in the freedom to pursue their inherent way of life, without ever a lurking fear that they might be born to ride to the Paris opera astride some dandy's eyebrows as did their beaver forefathers not so many beaver generations gone by. Down in the Bechler swamps, the lone loon is as solitary as the poet's version would be pleased to have it. Shiras moose thresh the willows in Willow Park, their behavior so naturally easy that the wide-eyed tourist might well wonder if it is not himself who is exotic in these surroundings and therefore the curious object. While watching a marten in the woods of Heart River, a coyote amongst the ghost trees of Middle Geyser Basin, a badger on the boulder-strewn hills of Lamar Valley, I have sometimes felt almost offended by the suspiciously elaborate disregard of my presence manifest in their behavior. But it is the birds of the water, beautifully wild birds by the thousand, that are encouragement and inspiration to the man who prays for conviction that the wilderness still lives, will always live. The shimmering silver sweep of the many lakes large and small, and the calm yellow-brown expanse of the broad, warm rivers harbor a varied and abundant bird populace. Trumpeter swan, sandhill crane, white pelican, Canada goose, American merganser, mallard, Barrow golden-eye, California gull, and osprey are outstanding in the picture, some because they are large birds, others because there are so many of them. In the case of the Canada goose it is both. Cormorant, Caspian tern, loon, Harlequin duck, willet, avocet, solitary sandpiper, shoveller, sora rail, great blue heron, and others earn distinction on a day's list because they are either rare or rarely seen. And the red-letter, wood-ibis day may not repeat itself in one person's experience. Other birds of more usual occurrence are coot (myriads of these), ruddy duck, pintail, green-winged teal, blue-winged teal, scaup, eared grebe, pied-billed grebe, buffle-head, red-winged blackbird, yellow-headed blackbird, belted kingfisher, western yellow-throat, tule wren, Wilson snipe, Wilson phalarope, and the inland waters' constant companions, dipper, killdeer, and spotted sandpiper; and beyond all these, fully again as many more. The concentration of so many waterfowl so high in the mountains is in itself an amazing thing. The readily apparent cause of this unusual spectacle is the abundance of warm shallow waters in both the streams and lakes which favor production of the preferred foods. Sometimes while I am watching these birds on the water, the illusion of the untouchability of this wilderness becomes so strong that it is stronger than reality, and the polished roadway becomes the illusion, the mirage that has no substance. The impression of the persistence of the primitive is strongest in those exciting minutes when the birds are observed struggling to outwit their natural enemies or in a competition against one another, themselves oblivious to all but the primeval urge of the moment. The notebook records many interesting incidents in the natural lives of Yellowstone birds, some of them particularly suggestive of the theory that animals hew closely to the way of life peculiar to their species, ignoring man-made changes in their environment so long as these do not constitute insuperable obstacles demanding deflection of habit.
Among Yellowstone birds, the sandhill crane is reputedly the wariest. Its bearing is always patrician. For all that the swan is a tradition of grace and dignity, still the familiarity that breeds contempt brings a day when one is close to confessing this bird's kinship to certain inmates of Si Farmer's duckpond. The sandhill crane never gives a chance for familiarity. In its aloofness there seems to be more than fear. A first acquaintance made in 1930 left an impression that subsequent events have failed to erase. It seemed as if the cranes eschewed close association of any sort with the whites who had come to trespass upon their chosen solitude. Only with the dire need to protect their young did the barrier break down. In early June 1931 we stood on the edge of a lost, lily pad lake in the Bechler River district. The gleam of sunlight on a rusty red head pressed closely down revealed a sitting crane. Though we halted in our tracks and made no movement, she could not endure our presence for more than a couple of minutes. I could not tell afterwards how she rose from the nest, but there she went, crossing the lake with slow, sweeping steady wingbeats, uttering that strange unearthly call which is the very embodiment of all wildernesses. Slowly she lifted, gaining just enough altitude by the time she reached the lake's far shore to clear the lodgepoles and disappear from our view. There were two eggs well advanced in incubation on the flat raft of tule stems. In 1932, this time on the last day of July, while we were riding across a wet meadow near Tern Lake, two sandhill cranes permitted us to come much closer than usual. The explanation was right under foot. Our horses jumped aside as a half-grown baby exploded from the young lodgepoles and went careening out across the uneven ground. We tried to run down this grayish-pink fledgling, but our horses were at a disadvantage, and once it reached the forest on the other side our quarry disappeared like magic. The one parent that remained on the scene flew from one hillock to another in silence. In alighting it would come in on a long slant, lightly touch its feet to earth in twelve to fifteen giant paces, and finally come to rest with wings folded. We had always maintained that this was one bird which would never consent to abide with man, but the summer of 1933 proved us wrong. All through the season two pairs of cranes each with a single young, fed unperturbedly in the meadows north of Fountain Geyser in full view of the constant procession of cars. On September 13, when last observed, the youngsters equaled their parents for size, though readily distinguishable by the reddish-brown streakiness of their bodies and the lack of color in the head markings. That same day we located a third family with two juveniles not more than a mile airline from the other two. It was a gala day indeed, for we felt that it marked Yellowstone's high achievement in perpetuating the primitive in the presence of man. An early morning in June found us driving from Canyon to Lake, a route which is always interesting because it never fails to reveal a fascinating wildlife panorama. Where the road closely parallels the Yellowstone River, two American mergansers were acting strangely. Both wore the gaudy trappings that proclaimed their maleness to the whole world. The foreparts of one merganser were thrust under water. Its tail was elevated, and the wings were slightly spread as with some extraordinary effort. The other merganser fussed alongside. Presently the struggles of the first ceased, and both of them began to circle excitedly around and around over the spot. A California gull came out of the nowhere, swooping past with a ghoulish cry. Back again it swung, then most unexpectedly departed in screaming, precipitate retreat. Before we could cogitate the unorthodoxy of such an ungull-like act, the mergansers, too, were lost to sight under the spread of a white fan-tail and the beating of broad dark wings. From a sparkle of spray, a bald eagle rose with one 10-inch native trout. And now the story was plain. The mergansers had tackled a trout too big to be managed. The gull foraging up the river sensed the possibility of a steal, only a few seconds before the swift approach of the eagle changed lust to fear. There we were, all of us, too much startled by the sudden dive of the great bird to do much of anything at all. With measured strokes the monarch winged away toward the distant wooded bench where, it is rumored, it occupies the same nest from year to year. A pair of Harlequin ducks dropping down through the fast water below the Cascades was the second touch of the unexpected. In the bright morning light the rich red side of the male was the conspicuous identifying mark, the more bizarre paintings on head and neck not being revealed at a distance. In a marshy expanse of the river not far from Mud Volcano, a pair of trumpeter swans were quietly feeding, and when we returned that way late in the afternoon they were still there, a picture of perfect repose in the soft caress of the setting sun. Though we never left the car in making these observations, what we saw was all wilderness life. The story of the white pelican is a sorry one the country over. California, for instance, which once had at least nine colonies and 2 years ago could still boast one, failed to produce any young in the summer of 1933 because of drought. But the wilderness of the Yellowstone fights to protect its own. The presence of white pelicans on Yellowstone Lake has been continuously recorded for over 50 years, and it is safe to assume that they have bred there for a long, long time. Rumors, probably well founded, since the antipathy of fishermen against all the fish-eating birds and mammals is well known, tell of numerous raids on the breeding islands, and the control experiments which were officially sanctioned are a matter of record. Today the fish predators in national parks have equal rights with all other classes of animals. There is written into the Park Service code for wildlife the following policy:
In spite of the pressure to destroy the primitive which was brought to bear before this permanent peace was signed, the colony seems to have maintained a fairly constant status throughout. Each year has revealed the same sort of domestic activity down on the island nursery. The general sequence of events, together with species noted and the numbers of each, have all been so constant for each of the trips we have made that the chronicle of any one of these excursions will do as a pattern of the rest. This particular trip took place on June 4, 1932. The Bureau of Fisheries' boat makes a broad furrow for 18 miles up the lake before the tiny Molly Islands at the head of the southeast arm are sighted. A hazy cloud of gulls first marks the spot for us. Then a half hundred pelicans rise up among them. For a few minutes they whirl about in disorder, then organize the flying march which takes them over to a sandspit on the mainland where they alight and remain, still in the order of march, at rest but watchful. While the boat is still a hundred yards off shore, two cormorants shoot out across the water straight and low like two torpedoes leaving a destroyer. At the same instant the calls of startled Canada geese come to us from the far side of the islands. Later someone spies the geese heading for the marshes at the river mouth. While we are coming to anchor and casting off the rowboat the cloud of gulls thickens and their protests shatter the calm. Among them are two Caspian terns, but they are not so fearless as the gulls, and soon are lost from the picture. Not until our boat scrapes on the pebbles do the sitting pelicans decide to abandon their nests to the enemy. We scramble to high ground in time to see the last reluctant three take to the air. The Caspian terns are presumed to be breeders, but this year as before we fail to find their nest among the 564 which we count as belonging to the California gulls. We find the single cormorant nest with 3 eggs. The cormorant population seems to remain constant at 1 pair. The 9 goose nests on the 2 islands contain a total of 19 eggs, 5 being the largest number in 1 nest. There are 126 occupied pelican nests, and 232 eggs. Three nests contain 4 eggs each. Two western willets, a few Wilson phalaropes, and the usual complement of spotted sandpipers complete the Molly Island census for the day. We hunt in vain for a blue-winged teal nest, remembering well the one we found on Pelican Island in 1930. The year 1932 marked a milestone in the Yellowstone white pelican saga. That year, respect for the pelicans reached the point where the superintendent of the park issued an order prohibiting all boats from even passing close to the Molly Islands during the nesting season, the only exceptions to be two or three ranger-conducted surveys for census purposes. Persistence of the primitive in the face of much interference has won its reward, another victory for wilderness.
There is an aura of wildness about the cluster of lakes deep in the wooded heart of Mirror Plateau which stills the voice and quickens the senses. From the first, our experiences in this territory taught us to watch for the unexpected. The trip of June 1932 yielded no particular excitement until the moment of our departure on the morning of the 25th. We walked up the crest of the hill on the west side of Tern Lake where we could get a good, though somewhat distant, view of the trumpeter swan nest that we had been studying. Both parent birds were out of sight, so we started on. At the last opening in the trees we hesitated for the fateful last look. A black object loomed by the swan nest. With field glasses glued to our eyes, we saw that it was an otter stretching its full length upward to peer down into the nest. From one side it reached out toward the center and pushed aside the material covering the eggs. Then the commotion started. With rapt interest, the otter rooted around in the dry nest material, heaving up here and digging in there, until it was more haystack than nest. Then the otter started to roll, around and around, over and over. This went on for a number of minutes. At frequent intervals its long neck was craned upward, and the serpentlike head rotated around to discover (we supposed) if the swans were returning. At last the otter seemed too weary of this play. It climbed from the nest to the outer edge, then slid off into the water. Swimming along the edge of the marsh grass, it was the undulating silver demon of the water world. Once it dove and several times detoured into channels through the grass, only to come right out again and continue on. It never turned back, and was finally lost to sight. Where were the swans all the while we had been praying for their return? We well remembered that time 2 years ago when they came flying in from a far corner of the lake to drive off a raven which had already broken one egg. Careful search with the glasses revealed the parents, all that we could see being the water-stained beads and black bills protruding from the marsh grass. One was about 600 feet from the nest, the other not more than 240 feet. Yet both birds gave no evidence of concern. Seeing that the damage was already done, and another year's potential swan crop for the Mirror Plateau lost irrevocably, we saw no further reason for caution. So we stripped off our clothes and waded out across the shallows. We were amazed to find all five eggs intact. There they were, all together, rolled to one side, but perfectly whole. So much for the circumstantial evidence. Had we gone on, Mr. Otter would have had one order of scrambled trumpeter swan eggs charged on his bill. We covered the eggs and hurried away in confusion as huge hailstones pelted our bodies. We hoped that the parents would return to protect the eggs from chill. The storm obscured the scene, obliterating the next chapter in the story. Later we learned from the ranger reports that no cygnets were raised on Tern Lake that year. Which meddler should shoulder the blame, the otter or the scientist? Mirror Plateau has been made a research reserve. The only trails leading in are elk trails. No developed trails will ever find a place there, and of course no roads. Since no trout are ever to be planted in these lakes, there is every reason to hope that here again the fugitive wilderness has found another safe retreat. The Mirror Plateau, however, like Molly Islands, is a special case. Here man has shut himself out to protect the wilderness. We seek to retell those occurrences when it seems that the wilderness has persisted in its primitive characteristic in spite of artificial developments. We stood on the road the cold morning of November 10, 1932, watching the sun lift the veil of mist from the meadows at the head of the Madison. Wild fowl floated on the river with that economy of movement so characteristic of wild creatures in cold weather. Men stamp their feet and blow in their hands, but the animals and birds seem to conserve their body warmth to best advantage by staying very still. The bald eagle usually present in this section in winter made its rounds and disappeared in the direction of the Firehole. A coyote sat out in full view in the middle of the snow-white meadow with a cocky mien which seemed to say that it had done enough mischief of a serious sort during the night and now awaited something to arouse its curiosity. Of course no good scientist would be guilty of even toying with the fancy that a coyote could be suspected of thinking at all. Oblivious to such insult, the coyote presently came trotting toward the river bank and proceeded to go on a still hunt for birds. He worked downstream, keeping back out of sight except where a break in the bank or some protective cover permitted him to come down to the water's edge. When five Canada geese near the opposite shore caught sight of the enemy they kicked into the air and flew off calling loudly. They broke the sweet silent spell. Mallards and American mergansers seemed aware that their position was impregnable and paid no attention. Nine mallards swam downstream right past the coyote, which by now was openly eying them from the bank. The coyote turned its attention to hunting small rodents in the meadow, and we started up the road. A single Clark nutcracker crossed in front of us. The road up to Old Faithful closely parallels Firehole River. Numbers of dippers breed here in summer, but in winter there is a much greater concentration on this and the other warm streams. But where were the dippers this morning? Finally we found them. We had been searching their accustomed rocks, but these were ice-covered now, and the birds had therefore abandoned them for the winter to stand quietly on the submerged rocks, their legs warmed by the friendly river. The elk, too, take advantage of the thermal heat. We saw many of them in the upper Geyser Basin and knew that some would remain there for the winter, loafing on the warm ground which is always free enough of snow to provide some forage. At that, they fare better than the bulk of their fellows who join the migration. It is generally recognized today that the elk wintering up on the plateau usually come though in good condition, whereas those on dole at the feed grounds are emaciated by spring. Wild game prospers more if permitted to remain primitive. The mere presence of man is not so injurious. It is when he attempts to have the animals live his way and die his way that ruin follows. Canyon, for example, is one of the human concentration points in the park, Before visitors came to this place, it was a concentration point for ospreys, and there is no evidence that civilization has diminished their numbers. Throughout the summers of many centuries they have raised their young on pinnacle nests in Yellowstone Canyon. Crowds of eager-eyed tourists on the parapets, which in some instances are almost directly over the nests, do not disturb the sitting birds.
Notes taken on the mild, cloudy day of May 20, 1932, read as follows:
The ospreys of Yellowstone Falls are evidence that even a very highly specialized and localized form can persist in the full vigor of the primitive in very close contact with man. Lately the sandhill crane has shown ability to do the same thing. The white pelican has done it, as have the beaver and the moose, the Canada goose, and many others. When I see how many of the wild creatures can reassert their wild way of life upon the exercise of a very little restraint on man's part, I am encouraged to laugh once more at the defeatists and tackle afresh the problems of wildlife restoration. Though these reminiscences of field days were encouraged for the purposes of strengthening a slightly damaged optimism personally, and rebutting the despair chorus generally, they have engendered a new line of thought. This is that a useful technique for solving wildlife problems may develop from a study of the inherent tendencies in all species to remain primitive. Since their primitive living pattern must represent the most beneficial one for them, we may hope through analysis and understanding of its method to improve management practice. More of the wild animal background should enter into wildlife administration to the exclusion of ideas rooted in centuries of association with domestic livestock.
In northwestern Wyoming is a land guarded by mountains. It is a wilderness of forest, swamps, and lakes, broken by cliffs and lofty granite spires, and chiseled by crackling ice and the sunny dripping of water. Long river tentacles reach up to this high plateau from different oceans. In winter it is a land of heavy snow and sweeping sleet, and sometimes the night is whiter than day. Then the elk herds drift down from the sage and aspen valleys where the rivers go to warmer levels. The weasels turn white with little black tips, and the snowshoe rabbits have black-edged ears above muffed feet. Sometimes a great gray owl comes softly out of a wet sky. In spring it is a land of mist-blue forests and sparkling lakes. Then summer haze begins to rise from the forest and makes the great mountains look like bluer shadows in a blue sky. Ocean birds come sailing in to nest in unseen swamps. There is the minute whistle of ducks, the call of geese, and the "weer" cry of gulls. The marsh grass grows in seeping ground and the forest blooms; the pond lilies push their soft yellow lamps above water, and sage and lupine bask in the sun. Into this land people go for the love of it and to learn its ways. To save this wilderness just as it was "for the benefit and enjoyment of the people", a portion of it was established as Yellowstone National Park. Here is a thing so glorious that it threatens to be impossible. How can the secret beauty of wilderness be opened to the people and remain unspoiled? This is the greatest question we have to meet if we are to save this and every other national park as truly primitive areas. At once we are faced with the thing so aptly expressed by Leopold:1
It seems that what we most need is the technique of using a wilderness without spoiling it. Roads and living accommodations have been constructed in these wilderness places to make them habitable for man. Roads have cut through forests and hills, have bridged rivers and marshes, have clean-cut the feathery margins of lakes. Buildings, erupting from the age-blended scene, have been set up in the midst of sacred areas. All this was perceived years ago, and a remarkable technique has since been developing to blend buildings, roads, and bridges with the scene and to save sacred areas from all development. But the main problem still confronts usto preserve the wilderness character of humanly utilized wilderness. A step so simple as to be almost overlooked, yet perhaps far-reaching in its implications, has been made. An old road in Yellowstone is to be improved and partly relocated. Near the brink of the Lamar River in northeastern Yellowstone, in the direct route of the new road, a small lake spreads between low glacial mounds. At evening, the mirrored hills and sky take on a shining luster within the margin of the lake. The picture looks so quiet, but from the tules around its edge comes a medley of squalls, chucks, squeaks, and ratchety sounds. From time to time the chorus rises, as two waterfowl with slapping feet and wings run across the water, shattering its picture into a thousand disconnected pieces. Then small dusky creatures bob again back to the tules, and the picture draws its shining self together once more.
The lake is not spectacular nor famed for its beauty. It is simply one of many lakes in the region where wild fowl nest and wild animals come timidly to drink. But the question aroseand this is perhaps the germ of a new techniquewhether the proposed road should girdle the lake or stay entirely away from it to avoid disturbance of the nesting waterfowl. In other words, was the wildlife of this lake important enough to man, for aesthetic recreation, to induce him to change the course of a proposed highway? The question naturally hinged on the extent and variety of waterfowl utilization of the lake. Observations made at the lake over a period of years have disclosed the following: Pied-billed grebes, not known in the park before, in recent years have been found nesting among the tules in this lake. Here they glean the mud-gray tule stems from the lake bottom and construct their barely floating nests. Each nest is hardly more discernible than a shadow on the water and can be easily mistaken for a tiny mass of half sunken débris. But neatly hidden beneath a few wet-clinging tule stems, rest the several roundish white eggs, sheltered from the sun and possible enemies while the nesting bird feeds out in the lake. One swampy afternoon a sharp and sudden hailstorm broke over the lake, pelted its glossy surface into bobbing chessmen and wilted the bird songs in the tules. With the first great drops of the shower, the silent snake-like head of the grebe suddenly rose in the water, the bird crawled onto her nest, carefully nosed the covering back and settled herself on the eggs while the hail drops rolled from her back. Some days later two little downy grebes were found swimming among the tules. They were captured, photographed, released. No sooner than the intruders' departure, four loudly cawing ravens swooped on the lake, flew away with one of the baby grebes, and the other one was never seen again. So much for the good intentions of man in the grebe's precarious haunt! Almost certainly, these timid, elusive birds would not frequent the lake if the road were built by its brink.
Year after year a pair of trumpeter swans returns with the lengthening days of April to rebuild their huge half-floating nest of dry tules stems. More like a haycock it looks as it lies nakedly on the lake in early spring. By the time the downy white cygnets hatch, after 40 days of hazardous incubation, green tules screen the nest and birds from the lake shore. So wary are these great white birds that they are easily frightened from the nest. At such timesin other nestsravens have been known to break the eggs, and an otter has been watched as it rolled in the nest and tore it to pieces. In spite of such vicissitudes, this pair of trumpeter swans has raised six young swans during the last 3 years. There are probably fewer than a hundred trumpeter swans left in the United States. This little lake is of vital importance to the species. Common Canada geese frequent the lake, although no nests have been found. Common mallards nest at the lake each year and usually may be seen with their shuttling ducklings, foraging somewhere in the tules. Pintails, scaups, and Barrow golden-eyes glean the marshes day after day, and ruddy ducks court and fight like pirates.
Each year, after long search, the shadowy form of the little sora is seen as it creeps through the whispering marsh tangle. At least three pairs of Wilson phalaropes have nested at the lake in 1 year. They are the most evasive of all the lake inhabitants. Now and then a solitary sandpiper proclaims its presence by a flying flash of its tail, but more often the spotted sandpiper flickers from bank to bank to lead you from its nest. Two killdeers nest near the muskrat's house, their plaintive cries convincing you that two fuzzy babies are crouched near you perhaps in a buffalo track. The inexorable coots fight and squawk day and night. Their clumsy nests, built like fire houses, with driveway from nest floor to water, encircle the lake. Prolific, they people the marsh with innumerable black babies. Yellow-headed blackbirds outnumber them all. Like a yellow-vested orchestra, they maintain the din and the clatter. Forty-three of their nests were found at the lake one summer. Of these, 33 were empty. Of the remainder, only 3 contained 4 eggs each when the census was taken. Their rate of reproduction at this particular lake cannot be great. Three pairs of red-winged blackbirds nested at the lake the same year. Their nests were destroyed by some unknown factor before the eggs hatched. But each year the red-wings return. Nevada Savannah sparrows and Lincoln sparrows nest in the grass by the lake shore. Rock wrens and yellow-throats sing from the surrounding hillsides. A total of 73 nests was found at the lake one year. This may seem an amazing number for so small a community but it is probably representative of many similar marsh-lakes in the park.
There seems to be a neat signal code between birds and mammals of the lake region. No matter how stealthily the lake is stalked, one's secret approach is usually heralded by the snort of an antelope, the whistle of a marmot, the squeak of a ground squirrel. After much foolish labor one peers cautiously over the last hillcrest to find every bird in the lake alert for danger. What the effect would be of highway traffic thrust into such a delicately poised protective system can only be conjectured, but it would probably deaden its efficiency. Thus we briefly sketch the lake's bluebook. Only the birds which are most confined to the lake habitat have been mentioned. A host of others is wrapped in the lake's ecologic community. They, too, add to the recreational values but are not directly connected with the problem under consideration. Since the lake is neither spectacular nor uncommonis not one of the outstanding manifestations of primitive natureshould so much consideration be given to it? Why not follow the already surveyed course of the proposed road? National parks are created where the outstanding examples of primitive nature are to be found. Roads and accommodations are constructed in them to make them available to the peopleso far, so good. But when we come to make the wilderness itself available to the people, we must first arrive at some idea of that which we seek, then develop the technique for accomplishing our goal. As far as wildlife in the wilderness is concerned, perhaps the greatest spectacle is not a flock of thousands of birds on a baited sanctuary, but the one mother grebe covering her nest while the hail drops roll from her back. We cannot build highways to see these things. We can build highways to bring people near enough that they can see these things by exerting a moderate amount of their own individual energy and ingenuity. Applying this thought to the lake and proposed highway, we would be more apt to attain the thing we seek if we kept this little lake away from the road, where those may go who care to and observe the birds which live there. There is no need to make it available to any others. Birds are seen constantly along roadsides in the park, as portrayed in the preceding article by Wright. Furthermore, as he has suggested, wildlife tends to cleave as closely as possible to its natural mode of living where the innovations of man do not actually force it out of its normal habitat. Even such disruptive events as the construction and utilization of modern highways in Yellowstone leave the major portion of the native bird life apparently undisturbed. In other words, the wilderness is persistent. It may be that the disrupting effect of a modern highway in a wilderness is more psychological than zoological. If such is the case, that it is worth considering, too. But in the particular case of this little lake and the proposed highway, there is grave doubt that a lake-shore highway would be of any benefit to either the nesting swans or grebes, and might result in the loss of several other species at the lake, even though there would still be enough birds left to present an interesting, primitive spectacle from the road. These factors were considered, primarily as affecting the trumpeter swans but also as affecting some of the other nesting birds of the lake. An order was issued that the road should not follow the lake shore. This perhaps seems like "much ado". Nevertheless, it is an advancement in the technique of utilizing the wilderness and still preserving it. What will the future of such a technique be? I am tempted to speculate. It will depend in great measure upon the things we learn about wilderness as an organism. Based upon these findings, accommodations for human convenience must be so constructed that they will exert a minimum of intrusion. Otherwise, man loses the things he seeks. It will depend upon the effects of roadways, trails, sanitation, roadside clean up, and other developments, as they affect plant and animal communities, soil, water percolation, etc. It will depend upon the effect of man's presence in large numbers in the wilderness. The accumulation of such knowledge may result in the restoration of much larger tracts of untouched wilderness than we have now. It may result in a greater concentration of development areas than we now have, with perhaps certain lines of development abandoned. Undoubtedly the future generations will be more adept in the art of this technique than the present, and they will be grateful for large tracts of wilderness wherein they may develop new values which our present limited technique has left untouched. From the psychological angle we have equally as much to learn. It is enough to suggest that perhaps a certain minimum area of undeveloped wilderness may be found necessary for the aesthetic recreation of the individual; that a certain width and type of road may not be exceeded without suffering definite loss of wilderness character along its course; that beyond a certain degree in refinement of roads and living accommodations we are as effectively removed from being in the wilderness as though a glass enclosed us; that guided trips and excursions must be limited to certain numbers of participants, beyond which we face the law of diminishing returns in wilderness enjoyment. At any rate, the decision at the lake was an indication of the growth of a wilderness-use technique in the national parksan attempt to keep these places as they were when the fur trappers first explored them, and yet to open their treasures to all people. 1 Conservation Economics, by Aide Leopold, Journal of Forestry, vol. XXXII, no. 5, 1934, pp. 537-544.
In the summer of 1913 Colonel Theodore Roosevelt, accompanied by two of his sons, went cougar hunting in the Kaibab Forest on the north rim of the Grand Canyon. There he met Uncle Jim Owen, who guided the party on its 2-weeks' cougar hunt. Uncle Jim has killed more than 600 cougars in the Grand Canyon and the Kaibab. In the October 4 issue of the Outlook and Independent 1 of that same year, Mr. Roosevelt recounted the big adventures of the trip and true to his sportsmanship, gave a generous account of his guide, Uncle Jim Owen.
In this brief account of Uncle Jim Owen, Roosevelt personifies the growth of the wilderness-use idea as it arose naturally, out of the vanishing frontierfrom buffalo hunter to cattle man, to game keeper and predatory-animal hunter on a Government game refuge. But to continue with the adventures of the Roosevelt hunting party, after a few days with Uncle Jim's hounds, a cougar was struck. Hounds and men trailed him over the brink of the canyon and "treed" him in a yellow pine on the edge of the red cliffs. Here the Colonel speaks for himself,2
This episode is brought back because it portrays that vivid American ideal which stopped the senseless slaughter of our game and which at the same time contained the seeds of inevitable developments that later so near]y defeated its purpose. There is no thought here to discredit Mr. Roosevelt's worksurely, he would have been the last one to say that nothing more could be learned about wildlife after his time. But unfortunately there are many today whose ideas on wilderness use have not budged an inch since 1913, who are still shooting into the tree where "stood the big horse-killing cat, the destroyer of the deer, the lord of stealthy murder, facing his doom with a heart both craven and cruel." So, let's go on with the story. Nearly all of the Kaibab cougars have been killed. At present it is thought by lion hunters familiar with this rough country that perhaps four or five cougars may still remainhardly sufficient even for breeding stock. It is true that cougars eat deer, as Colonel Roosevelt said. It is also true, as he did not say in his article, that when things which eat deer are removed, deer increase like guinea pigs. By 1919, deer of the forest had increased until they were beginning to consume more forage than the range could produce. The Forest Service reported the situation, but the Kaibab was so far away that no one could believe it. Deer kept increasing, forage kept diminishing, cattle and sheep were reduced to alleviate range pressure, the forest officials called loudly, the stock owners called just as loudly; a few people in the country pricked up their ears and said "There is nothing to it." By 1924, deer had increased until more than seventeen hundred were counted in one meadow in one evening. Winter came, deer died, and those that lived ate every leaf and twig till the whole country looked as though a swarm of locusts had swept through it, leaving the range (except for the taller shrubs and trees) torn, gray, stripped, and dying. Conservationists of the country at large heard the noise of the fray and got in a first-class tangle which effectively prohibited anything from being done. Cattle and sheep contributed materially to the destruction; the combined factors hastened and augmented the catastrophe. Finally, the area was thrown open to hunting, and by 1930 the deer had been greatly reduced. By 1934, parts of the winter range still look almost as they did 10 years ago, and it will probably take 50 years of careful management completely to cover the scars of the fiasco. It was a conservation fiasco and it opened our eyes to the necessity of wildlife (not game) management.
It is not being maintained here that the killing of cougars was the sole factor which brought about tile Kaibab disaster. Other factors entered into the problem, such as overstocking the range with domestic stock. Then too, coyotes, bobcats, and eagles were killed as well as cougars. But it is thought that the cougar-deer relationship traced here was the main factor in the whole complex problem. This paper started with the title, "National Parks and Wilderness Use". Where do the national parks come into the picture as portrayed thus far? It comes about in this way: Wild animals know nothing about the arbitrary boundaries which man draws on maps to indicate areas set aside for his different types of wilderness use. Animals wander back and forth, as seasons and quest for food dictate, across refuge or hunting ground, park or forest, as the case may be. What affects the deer or cougars in the environs will also affect them in the game sanctuary itself. Grand Canyon National Park adjoins the Kaibab National Forest. When cougars were killed and deer consumed the range in the Kaibab, cougars became scarce in the adjacent national park and deer destroyed large areas of forage there, too. When national parks were set aside as inviolate wildlife sanctuaries, to preserve representative portions of the American frontier heritage, it was assumed that the wildlife of these parks would find suitable refuge within them regardless of what happened outside. But when deer were shot in the Kaibab National Forest, there were fewer deer to return each spring to Grand Canyon National Park. It became evident that in order to make our national parks effective wildlife refuges we must cope with the conditions which affect wildlife outside of the parks as well as within them. Particularly was this true at Grand Canyon, because hunting is not permissible in national parks. An appropriate aside here is that the necessity of complete protection for all forms of wildlife within the national parks is evident, if we are to preserve these relatively small areas of American wilderness in front of a steam-roller civilization. Therefore hunting to reduce the abnormal population of deer on the Kaibab had to be done outside of Grand Canyon National Park. For several years the recovery program at the Kaibab has been under way. Its objective is to determine the carrying capacity of the range in its present impoverished condition, to reduce the deer herd to within this range-carrying capacitydomestic stock has already been reduced to 1,800 head of cattle and 2,400 head of sheepand to keep the deer herd commensurate with range production until the range can once more attain normal production. In other words, the deer herd will increase in size as forage production increases. Toward this end a cooperative range reconnaissance and deer census is made in February and March annually, with members of the Forest Service, National Park Service, and State game commission participating. Forage conditions of the winter range are noted carefully as day after day we ride the ridges and valleys of this frontier. All deer seen are counted by the parties interspersed in the field at such distances as to avoid duplication of count. As the range recovers the census may become impossible, but under the present overbrowsed condition deer can be seen readily. The census is only a working figure; inspection of the range is the important factor. A second and more scientific method is the construction of fenced range quadrates. This is really simple. In its barest form, a representative plot of range is selected and fenced against deer and stock. The plants inside the fence cannot be eaten; consequently they have a normal growth. Each year the new growth inside the fence is measured and compared with the measured remnants of new growth left on plants outside the fence. And thus we learn just what percentage of plant utilization the range is receiving and whether the range is deteriorating or improving. Of course, this type of study has more complex ramifications but the case just given illustrates the method. This method is also being employed in national parks where elk and deer winter ranges are endangered. The inevitable train of events now has brought us to the place where we can look back critically upon the cougar hunt of 1913. It was done then with the idea that proper wilderness utilization would consist of killing the bloodthirsty animals so that people could enjoy the gentle ones. But we have seen what happened to the gentle deer of the Kaibab and Grand Canyon. Unfortunately, the Kaibab was only the type case; the same thing has happened in many places throughout the West in both national parks and national forests where deer and elk have been protected and their enemies destroyed. The whole difficulty arises because we have learned to appreciate only a few wilderness aspects. By now you are ready to say that the whole Kaibab fiasco would never have happened if we had hunted both cougars and deer moderately. I am willing to say that that would have been infinitely better wilderness utilization than we got, but I suspect that "moderate hunting" at that time would have meant 50 deer, 50 cougars. Undeniably, cougar hunting had as much justification as deer hunting. It is real sport. After reading Roosevelt's account of his 1913 cougar hunt, no one can doubt that the Colonel, Uncle Jim, and the boys had a whale of a good time. Furthermore, cougar huntinglike deer huntingis an economic asset to the community. It is reported that one lion hunter who guided parties into the Kaibab during 1928 and 1929, when his parties bagged nearly 50 cougars, reaped some $9,000 from his hunting in those 2 years. It looks as though the remaining four or five cougars of the region will have to grow a lot of kittens before another $9,000 can be harvested. Deer and cougar lived together for countless thousands of years before white man came along to protect the helpless deer. How much part the cougar played in developing the deer into an animal with its particular type of fleetness, grace, alertness, and cunningthe very characteristics which make the deer a deer and not a cow and hence desirable for recreation and gamewe can only conjecture. We do know this, however, that in areas where deer have had the predatory menace entirely removed, they have largely lost both the game and the aesthetic values. Now, if any hunter or game expert thinks he can step into the cougar's role and supply all of the evolutionary factors which we suspect the cougar has supplied, he is welcome to do so, but I would rather not see him do it in or near a national park, where we should like to maintain a semblance of the primitive. Slowly permeating through the maze of events at the Kaibab was this concept of the organic character of the wilderness. That is, things could not be done in the Kaibab without affecting Grand Canyon, and vice versa; cougars could not be killed without directly affecting the character, habits, and numbers of deer and indirectly affecting range; range plants could not disappear without affecting ground-dwelling birds and small mammals, and so on. It is this very thing, the organic character of wilderness life, which makes it impossible for any national park or other wildlife refuge to stand alone, unharmed by factors outside of it. To put my case briefly, I want to see a sustained yield of all forms of native wildlife and of wilderness recreation, particularly in the regions surrounding the national parks. Not only do I believe that such wilderness use is the inevitable, solution of the Kaibab type of difficulty, but further, that it is the only possible utilization of the wilderness areas surrounding the national parks which can make it possible for us to preserve the wilderness aspects of the national parks themselves. In view of the organic character of the wilderness, it now becomes evident that to attempt to compute the recreational or game value of a wild animal on the basis of the number of times it may be seen by visitors, or upon the number of its kind which may be viewed or shot, is a childish and futile approach. The wilderness is much too complicated to be dealt with in any such crude butter-and-eggs way. And the psychology of recreation is equally much too complicated for any such rule-of-thumb hedonics. To put it another way, we cannot stress, the value of one animal at the expense of another, for if we do our lopsided vision is reflected in poor management which wrecks the whole organic wilderness. Moreover, acquaintance with, or utilization of, the infinite variety of wilderness processes and creatures has far greater recreational potentialities than any sentimental addiction to a few, obviously harmless, pretty creatures. And equally important is this business of numbers. Perhaps the greatest deer spectacle on earth is not the seventeen hundred deer eating up the meadow in the Kaibab but one perfectly healthy buck bounding through the forest. Had these principles been applied in managing the Kaibab from the time it was first made a national forest, I believe that the fiasco would never have occurred. This is not an attempt to say that all wilderness areas should be managed according to national parks' principlesmost certainly not. There are and should be many different types of wilderness utilization, and the purposes of one type do not need to coincide with the purposes of another type. For example, Grand Canyon National Park was set aside for its scenic beauty, for its recreational and educational possibilities, and for scientific study. Immediately north of Grand Canyon National Park lies the Kaibab National Forest, a great hunting ground and one-time cattle range. Immediately to the south of Grand Canyon lies the Tusayan National Forest, wherein there is lumbering and stock grazing. And south of that lies the public domain with its unfortunate everything. Here then is a typical example of the dove-tailing of our various wilderness-use purposes. But the point is that there are certain biological principles which all wilderness administrations will have to adopt or else none can be successful. From the wildlife management angle, an attempt has been made here to state fairly some of these inescapable principles by tracing briefly the salient events of the Kaibab and analyzing them. Let us go on now to a consideration of the function of national parks in our scheme of wilderness use generally.
In view of the fact that there are many varieties of wilderness use, as just outlined above, most of which are practices that for one reason or another definitely and permanently modify most of our remaining wilderness heritage, it becomes evident that the national parks have a very definite function to perform in maintaining primitive conditions. This is a thing which the public generally does not understand. There is a constant flow of proposals to the National Park Service to introduce this or that exotic, such as pheasants, Hungarian partridges, even large foreign mammals; to kill predators; to make zoos; to throw the parks open to grazing and lumbering; to provide artificial amusements; and in general to make of the parks just another string of fashionable resorts. These things which can be done better elsewhere should be done elsewhere. Because certain amusement contraptions have been successful at Coney Island, or certain types of exotic game have produced sport on somebody's shooting preserve, is no reason why these things should be transferred to our national parks. As Mr. Frederick Law Olmstead points out, there is need to clarify our concept of that type of recreation which is sought in the wilderness and not introduce the things which could operate much more satisfactorily elsewhere; for instance the amusement contraptions of Coney Island. Conversely, we should determine what attributes are peculiar to each park or wilderness itself and make our developments conducive to the enjoyment of these. We must see the particular function which national parks have in wilderness use generally, then develop our technique of administering them accordingly. And to this technique some of the principles developed earlier in this paper have been found to be essential. In respect to our Nation's wildlife, the national parks play a quantitative part as well as a qualitative. Many times in the recent past, national parks have operated as reservoirs to replenish sections of the country where game animals had become extinct, for instance, the 3,000 elk transplanted from Yellowstone to various parts of our country and Canada. But above even this function of restocking the country with game animals is the function of pure wildlife conservation. The national parks have already provided sanctuaries and in the future, even more, must provide sanctuaries for many forms of wildlife which can exist nowhere else in the countryfor example, grizzly, wolf, wolverine. As corollary to the above, another function of the national parks is their obligation to forge the way by a unique educational technique toward a more widespread appreciation of all forms of wildlife and all aspects of the wilderness. Often elsewhere in game management there has been the tendency to follow the pleasant road of the "good fellow"; to provide as much as possible of the things to which people were most accustomed, because the accustomed things are the most comfortable; that is, to sentimentalize over the helpless deer, to ascribe deeds of honor and human intelligence to hounds, to transplant the familiar things far and wide and, above all, to produce quantity. These luxuries are quite all right in their place, but if they become the sole mode of recreational wilderness use, I'm afraid there would be a nauseating monotony about it all. Moreover, such practices lead definitely to destruction of many phases of nature, as at the Kaibab. Thousands of people go to the national parks because they want the things which are peculiar to the primeval wilderness and, what is more, peculiar to a particular wildernesssuch as Glacier or Yellowstone or Grand Canyon or some other one. To make possible the great joy to be found in the infinite variety of the wildernessnot to thwart the desire to discover more and more of its waysand the moral obligation to leave it unimpaired for new discoveries tomorrow, these are functions, of the national parks in our general scheme of wilderness use. Our national parks are a great philosophical venture in which we are attempting to pry open for ourselves the intricate and delicately balanced system of wilderness values essential to full and intelligent enjoyment of the wilderness. The success of the venture is going to hinge largely upon our understanding of the values at stake, our knowledge of recreational psychology, and our ability to meet the biological requirements of wilderness management. 1 A cougar Hunt on the Rim of the Grand Canyon, by Theodore Roosevelt. Outlook, Oct. 4, 1913, pp. 259-266. 2Loc. cit.
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