CHESTNUT-BACKED BLUEBIRD (Sialia mexicana
bairdi). |
Field Marks: |
Typical bluebird size. Adults, head, wings and tail
blue; breast and back chestnut. Female, duller than male.
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Occurrence: |
ZION. Common permanent resident, nesting in the
higher reaches of the park in the summer, and drifting into the low
canyons in the winter months. Nests in June.
BRYCE CANYON. Common summer resident. Nests in
June.
CEDAR BREAKS. Common summer resident.
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At first glance the Bluebird appears almost hump
shouldered, and this distinctive silhouette is a great aid in
identifying the bird at a distance. Ordinarily, it does not remain high
in the trees, but prefers the lower branches and open forest glades. Its
nest is built in deserted woodpecker holes, or in other cavities in the
trees. During the winter months it comes into the canyons, but is seldom
found in the narrow, deep sectors. Instead, it drifts through the pygmy
forest and around the open meadows in the wider portions of the valley.
It is very fond of mistletoe, and often makes an entire meal on the
fruits of this plant.
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MOUNTAIN BLUEBIRD (Sialia currucoides). |
Field Marks: |
Typical bluebird size. Male, bright sky blue above
and below; stomach white. Female, upper parts brownish-gray; rump, tail
and wings blue; under parts dull.
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Occurrence: |
ZION. Fairly common permanent resident, nesting in
the higher portions of the park, and entering the canyons in the winter.
Nests in June.
BRYCE CANYON. Permanent resident, common during the
summer months, but less frequently observed during the winter.
CEDAR BREAKS. Common visitant from late summer to
late winter. May be a permanent resident, but records are lacking.
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Few birds in the entire West arouse more admiration
than the brightly-hued Mountain Bluebird. Sitting quietly in a bush or
on a post, its beauty is not so obvious, but when it leisurely takes to
the wing its brilliant sky-blue color catches the eye immediately. In
hunting insects it often hovers above the ground with rapidly beating
wings while it scans the ground, repeating the performance a short
distance away, if no prey is found. It is a very quiet bird, seldom
giving voice to any calls. After raising its young in early summer, the
entire family drifts into the high country meadows and open glades.
Several of these birds have been observed on the snow fields at Cedar
Breaks during January and February. where they were catching insects.
During that time of the year, the insects cover the snow in large
numbers, and the bluebirds have an almost inexhaustible supply of food
for several days at a time.
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TOWNSEND'S SOLITAIRE (Myadestes
townsenddi). |
Field Marks: |
Robin size, but slimmer. Adults, gray, with a
prominent white eye-ring, white edged tail and a narrow buffy bar
showing across the wing when in flight.
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Occurrence: |
ZION. Fairly common permanent resident, nesting in
the higher portions of the park and drifting into the canyons during the
winter months. Nests in June.
BRYCE CANYON. Fairly common permanent resident, with
sight records throughout the year, but with nesting records lacking.
CEDAR BREAKS. Common permanent resident. Nests in
late June and July.
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It is a rather odd experience to hear a bird singing
in the forests when snow and winter winds are encountered. Yet, around
the Cedar Breaks region in the winter of 1941 it was not uncommon to
hear the Solitaire singing away, just as though spring flowers were
underfoot, instead of several feet of snow. Its nest is found on the
ground, usually under a tree or rock overhang. During migration, large
numbers flock together and drift through the region.
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WESTERN GNATCATCHER (Polioptila caerulea amoenissima). |
Field Marks: |
Small wren size, slender. Adults, bluish-gray above;
under parts whitish; tail black with white edging.
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Occurrence: |
ZION. Common summer resident in the lower portions of
the park. Nests in June.
BRYCE CANYON. Uncommon summer resident, usually in
the lower canyons, but occasionally seen on the rim. Nests in June.
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This tiny mite of a bird looks very much like a
mockingbird in miniature, but his habit of cocking his tail at a sharp
angle is much more wren-like. He is very nervous, and is seldom still
for more than a moment. His song, if one can call it that, is rather
squeaky. He is usually found among the brush, but one nest in Zion
Canyon was in a tree at least ten feet above the ground.
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WESTERN RUBY-CROWNED KINGLET (Regulus calendula
cineraceus). |
Field Marks: |
Small wren size. Adults, crown in male bright red,
red crown lacking in the female; upper parts olive-gray; wings with two
pale bars; under parts dull white; a very conspicuous light eye
ring.
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Occurrence: |
ZION. Common permanent resident, nesting in the
higher portions of the park and migrating into the canyons in the winter
months.
BRYCE CANYON. Fairly common summer resident in the
higher portions of the park around Rainbow Point.
CEDAR BREAKS. Common summer resident. Nests in late
June and early July.
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In the dense fir and spruce forests of the highlands
one often encounters this tiny bird during the summer months, as it
industriously forages through the trees, pausing only momentarily now
and then to give voice to a series of notes that start out in a scolding
fashion and end in a pleasing little melody. Its slightly nervous
habits, and plump, short-tailed body are fine aids in ready
identification. If angered, the male will fluff up his feathers and
erect the scarlet crown patch, and the sight of this red-headed bundle
of feathered dynamite will usually send much larger birds on their way
in a hurry. During the winter months kinglets migrate into the lower
canyons in large numbers, often being found in quantity around the
feeding trays, where suet is plentiful.
There is still some doubt as to whether the Eastern
or Western Ruby-crowned Kinglet is present in this part of Utah. On the
basis of present knowledge, our kinglet is identified as the Western
form.
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WHITE-RUMPED SHRIKE (Lanius ludovicianus
excubitorides). |
Field Marks: |
Bluebird size. Adults, gray above; white below; wings
black with white bars; tail black with white edgings; some feathers
white tipped; a prominent black mask through the eye; head large.
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Occurrence: |
ZION. Fairly common permanent resident in the lower
reaches of the park, seldom getting into the deep canyons.
Along the approach road heading into Zion from the
southwest one often sees this beautifully marked black, gray and white
bird sitting on a telephone line or in the top of some high bush, where
his black mask gives him a rather sinister appearance. And this
appearance is not misleading, as he not infrequently uses small birds as
food. One of his principal floods is the grasshopper, which he consumes
in large numbers. One would never suspect this bird of being a songster,
but such is the case. During the mating season it renders a really
pleasing song, not unlike that of the thrasher, although more
deliberate. The shrike is often confused with the mockingbird, but the
mockingbird is much slimmer, has a longer tail, large white wing
patches, and does not possess the black mask through the eyes.
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PLUMBEOUS VIREO (Vireo solitarius plumbeus). |
Field Marks: |
Sparrow size. Adults, upper parts dark gray; under
parts grayish, tinged with olive; throat, eye ring and two wing bars
white.
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Occurrence: |
ZION. Common summer resident from the canyon bottoms
to the rim country. Nests in May, June and early July.
BRYCE CANYON. Fairly common summer resident in the
lower portions of the park. Nests in June.
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In early April the clear, insistent call of this bird
can be heard coming from almost any part of the brush and broad-leaf
tree region below 7,500 feet. His sharp "Jimmy," usually followed in a
few seconds by a commanding "Come here," is an excellent aid in
identifying him from all other resident vireos. During the fall and
spring his far western cousin—the Cassin's Vireo also migrates
through the region, and may be confused with the Plumbeaus, but during
the summer there is little chance for a mistake. The nest is a work of
art, usually found about six to ten feet above the ground near the end
of a branch. It is made of compactly-woven, light colored grasses and
lined with fine bits of leaves and the cotton from the poplar trees.
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WESTERN WARBLING VIREO (Vireo gilvus
swainsonii). |
Field Marks: |
Wren size. Adults, upper parts olive-gray; under
parts white, tinged with yellow on the flanks; white streak through the
eye; wings unmarked.
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Occurrence: |
ZION. Common summer resident throughout the
broad-leaf tree belt. Nests in May and June.
BRYCE CANYON. Uncommon summer resident, usually in
the lower portions of the park. Nests in June.
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Of all the vireo songs, that of the Warbling Vireo is
the most carefree. Drifting through the trees, he sings and talks as he
goes, pouring forth a jumble of notes that somehow manage to combine to
form a pleasing song. Nor is this song given only a few times during the
day. During the nesting season it is repeated in an almost endless
fashion, hundreds of times each day. Like the Plumbeous Vireo, he nests
only a few feet above the ground, and his nest is almost identical to
that of his darker cousin.
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VIRGINIA'S WARBLER (Vermivora virginiae). |
Field Marks: |
Wren size. Male, upper parts gray; under parts dull
white; throat, chest, upper and lower tail coverts yellow. Female,
similar to the male, but duller.
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Occurrence: |
ZION. Fairly common summer resident around 5,000
feet. No nests have been found, but young were observed in late
June.
BRYCE CANYON. Uncommon summer resident around the rim
and in the canyons below the rim.
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During the early spring this species may be seen
migrating through the region along the various stream courses, where it
literally fills the cottonwoods and willows. The male is an excellent
singer, and can be heard almost any hour of the day during the migration
period and the nesting season, as he works through the trees in search
of food. During the summer the bird becomes more retiring, and is
usually found in the low, dense bushes, where he flits about silently,
and is thus seldom noticed. The heavy groves of oak in the Zion and
Bryce regions are likely spots to find this warbler.
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ROCKY MOUNTAIN YELLOW WARBLER (Dendroica aestiva morcomi). |
Field Marks: |
Wren size. Adults, apparently all yellow, but a close
view will disclose a greenish tinge to the back and fine reddish streaks
on the lemon-yellow breast.
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Occurrence: |
ZION. Common summer resident throughout the canyons
along the stream courses. Nests in June.
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This is one of the most difficult of all the warblers
in the park to see well. Usually it ranges high through the tops of the
trees, while his beautiful, high-pitched song seems to come from no
place in particular. He is usually quiet in movement, traveling slowly
through the trees as he searches for worms, and seldom exhibiting the
nervousness so characteristic of the other warblers of the region. In
many parts of the country it is called the "Wild Canary," a term also
applied to the Goldfinch.
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AUDUBON'S WARBLER (Dendroica auduboni memorabilis). |
Field Marks: |
Large wren size. Male, upper parts blue-gray; under
parts white, with a black breast patch; throat, crown, rump and a patch
on each flank yellow; wings and tail with white markings.
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Occurrence: |
ZION. Uncommon summer resident in the higher portions
of the park, but abundant during the spring and fall migrations
throughout tine region. Nests in June.
BRYCE CANYON. Fairly common summer resident along the
forested rim and in the protected canyons below the rim. Nests in late
June and early July.
CEDAR BREAKS. Fairly common summer resident in the
forests back of the rim. Nests in July.
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This is the familiar "five spot," so called because
of the five spots of yellow that show in flight, with the rump patch
standing out most prominently of all. He is an expert at catching
insects, and has the flycatchers' habit of darting out from a perch to
capture a passing gnat, and then returning to his vantage point. He pays
very little attention to an observer, and, if one stands motionless, he
will often come within a few feet. Its short, sharp call note is easy to
learn, and serves as an excellent means of identification in the
field.
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BLACK-THROATED GRAY WARBLER (Dendroica
nigrescens). |
Field Marks: |
Wren size. Male, grayish above; whitish below; head,
throat and chest black, striped with white on the head. Female, much
like the male, but duller.
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Occurrence: |
ZION. Common summer resident on the bushy slopes and
through the pinon pine-juniper forest. Nests in June.
BRYCE CANYON. Common summer resident in the lower
portions of the park, although occasionally reaching the rim. Nests in
June.
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In contrast to the nervous, ever-moving Audubon's
Warbler, tine Black-throated Gray seems very quiet and unassuming.
Slowly he moves through the trees of the "pygmy forest," thoroughly
examining each tree in turn, hesitating every now and then to drawl out
his wheezy little song. At first glimpse, one may mistake him for the
familiar chickadee, but the sharp black and white stripes on the head
are quite distinct from the black cap and chin with the white line
through the eye that identifies the chickadee.
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GRACE'S WARBLER (Dendroica graciae graciae). |
Field Marks: |
Wren size. Male, upper parts gray; under parts white,
streaked with black; throat and line over the eye, bright yellow; two
white wing bars; Female, like the male, but much duller.
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Occurrence: |
ZION. Fairly common summer resident in the higher
portions of the park. Nests in May and June.
BRYCE CANYON. Fairly common summer resident over the
plateau. Nests in late June and early July.
CEDAR BREAKS. Uncommon summer visitant along the
forested rim.
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There are few warblers that will come down and feed
upon the ground, most of them preferring to stay in the bushes or trees.
However, this demure little warbler is seen near or on the ground almost
as much as in the trees. It is quiet in its hahits, but has a rather
pretty song. It is the only warbler in the region that at a distance
appears uniformly grayish in color, with a bright yellow throat.
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