THE BIRDS
ALLEN HUMMINGBIRD. Selasphorus alleni Henshaw
Field characters.As for
Rufous Hummingbird (which see), but in adult male back green. In hand,
the next to middle pair of tail feathers in the adult male are plain
(not notched as in the Rufous) and, in both sexes, at all ages, the
outermost tail feather on each side is narrow, not more than 2
millimeters wide.
Occurrence.Sparse
transient. Two immature individuals collected at Dudley, 6 miles east of
Coulterville, August 5 and 10, 1920.
The Allen Hummingbird is a breeding bird of the
coastal district of California, but at the conclusion of nesting both
adults and young range widely before departing southward. The flower
garden on the Dudley ranch, 6 miles east of Coulterville, is a mecca for
many hummingbirds; the "red hot poker plants" are particularly
attractive. Among the species found to be represented there in August,
1920, were two individuals of the Allen Hummingbird collected on the 5th
and 10th, respectively. One of these was in molt from juvenal to adult
plumage; the tail feathers of the adult category showed the absence of
notch, and were therefore characteristic of alleni. Both
specimens showed very narrow outer tail feathers as compared with the
distinctly broader ones in the same plumage stage of rufus.
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