Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Cogswell
1949
Chamaea fasciata
3
Aug. 26
3 mi. N Willow Creek, 700 ft., Humboldt Co., Calif.
A few sang occasionally from the Tan Oak - mature
Douglas Fir - Black oak forest on slopes of [illegible] Canyon.
Aug. 28
Horse Lints Creek, (cont.) - The birds collected here
(#'s 77, 78) both had, like those collected by
Hullion at Branch Camp, a large brood patch
yet the shell roof was thin + transparent.
I begin to wonder whether this species develop
the double roof, at least as early as its first
breeding season. The other alternative is that
the brood patch is either not such, or that it
develops by this time of the first year.
Sep. 3,4
Brannan Mtn., 3700 ft., Humboldt Co., Calif.
The typical song of the male was heard
both in late p.m. & early a.m. down the N. facing
slope, which is primarily open pine forest
with scattering of shrubs, but has some
admixture of Douglas Fir, Tan oak. There
are also thickets of deciduous shrubs in the
bottom of the larger draws, from which I pre-
sume the bird was singing.
Sep. 7 (2 1/2 mi N.N.W.) Red Mtn., 5300 ft., 14 mi. S Hayfork, Trinity
Co., Calif.: The song typical of the & was heard
several times in the early a.m. from our camp
- apparently coming from the shrubland area
near the small bald just above the forest we
were in. No birds of this species were located
there on several subsequent coverages.