The Birds of Washington (Volume 1 of 2): A complete, scientific and popular account of the 372 species of birds found in the stateDawson, William Leon
Science
The Birds of Washington (Volume 1 of 2): A complete, scientific and popular account of the 372 species of birds found in the state
Dawson, William Leon
Birds -- Washington (State)
General Range.—“Northwestern North America, except Pacific Coast,
breeding in interior of Alaska; south, in winter, to eastern British
Columbia, Montana (Bitterroot Valley), etc.” (Ridgway).
Range in Washington.—Reported by Allan Brooks as breeding in the Mt.
Baker district (as below); should occur upon the timbered lowlands in
winter.
Authorities.—Allan Brooks _in epist._ Dawson, Auk Vol. XXV. Oct. 1908,
p. 482.
Specimens.—Prov.
This large and handsome Finch is of very irregular occurrence in
southern British Columbia excepting the higher mountain ranges, where it
breeds. During some winters it is present in large numbers, while in
others, equally severe, none are seen. The species was very common
throughout the winter of 1906-1907, a very severe one; but in that of
1901-1902, which was notably mild, Pine Grosbeaks were noticed in
considerable numbers as far south as Penticton, 40 miles north of the
international boundary, and they undoubtedly occurred much farther
south.
Their food in the winter months is principally berries, but, strange to
say, they altogether refuse those of the mountain ash, both the
introduced and indigenous species. The former is the favorite food of
the Eastern Pine Grosbeak thruout the winter in Ontario, but trees
loaded with fruit were passed by at Okanagan Landing in the winter of
1906-1907, even after the birds had eaten all the rose hips and snow
berries and were reduced to eating weed seeds with the _Leucostictes_.
Either this sub-species or _montana_ breeds on all the higher mountain
ranges in British Columbia, occupying a zone from timber line downwards
about 2,000 feet.
My first acquaintance with the Pine Grosbeak at its breeding grounds,
was in the Cascade Mountains due north of Mt. Baker, on both sides of
the Forty-ninth Parallel. Here the species was a somewhat sparing
breeder close to timber line among the hemlock and balsam timber. They
were feeding young on the 17th of July; at the same time Crossbills had
fully grown young in flocks. No red males were seen, though many gray
males were singing in the early mornings from the topmost spray of some
balsam.
In the writer’s opinion the red plumage in the male is acquired at the
first moult or immediately after the juvenal dress, and is usually only
retained for one season; in some males a duller red dress is carried
through the second summer, or more rarely a salmon-pink one; but in most
cases the dress of the second summer is a gray one like the females,
with yellow head and rump. Females may sometimes be seen with decidedly
red heads and rumps,—from the size and shape of the bill these seem to
be very old birds. The above remarks as to the red dress in the male
apply also, in the writer’s experience, to the genera _Loxia_,
_Carpodacus_ and _Acanthis_.
Allan Brooks.
No. 25.
AMERICAN CROSSBILL.
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