Field notes, v1536
Page 489
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