Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Nov. 8 Casita, 40 km. S Nogales, 3300 feet, Sonora.
The woodland bird life is not generally distributed at this time of year. Its two most impressive aspects are the wandering flocks of Aphelocoma ultramarina and the loose, large, mixed flocks of small passerines, which have been observed to include
Parus wollweberi, Psaltriparus, Polioptila
caerulea (one only, noted today), Spizella
creeperi, Spizella passerina, Thryomanes,
Salpinctes, Corthylus, Junco oreganus,
Junco phaeonotus, Vireo huttoni, Dendroica
auduboni; and Dendroica nigrescens (one each
on Nov. 6 and 8). Flickers and, less commonly,
and sapunchers
Arizona woodpeckers occur scatteredly. Along
the draws, where brush heaps and thickets
occur, there are brown and spotted towhees.
Canyon wrens occur locally where there are
rocky slopes and deep cuts in the narrower
draws or along narrow portions of larger
draws. Pairs or small flocks of Aimophila
ruficeps occur generally on the slopes bordering
the draws, where there are at least
shrubs, either on the wooded north-facing
slopes or on the more exposed south-facing
slopes.
One aspect of the woodland not mentioned
under Nov. 6 is the facts that much of the region