[504] BIRDS OF OREGON 



population. In eastern Oregon our latest fall date is October 2.4 (Lake 

 County) and our earliest spring record is March 2.2. (Klamath County), 

 except for a single straggling record of two birds seen by Jewett in Wasco 

 County, January z, 1917. West of the Cascades the species remains in 

 numbers every winter. 



We have only one definite nesting record, that of a nest in an aspen 

 tree on Hart Mountain containing three small young and one addled egg, 

 found June 15, 192.6, while the authors and Dr. W. B. Bell were traveling 

 together toward the summit of the mountain. We have, however, num- 

 erous records and some specimens of newly fledged young from the Blue 

 Mountains, the Cascades, and the Willamette Valley. Braly took eggs, 

 May 2.4 and 2.7, 1930, in Klamath County, and Patterson (ms.) reported 

 sets, May 6, 192.2., May 10, 192.0, and May 2.0, 192.4, for the same terri- 

 tory. There is a set of eggs in the National Museum taken by Bendire 

 near Fort Klamath in 1882.. 



Black-throated Gray Warbler: 

 Dendroica nigrescens (Townsend) 



DESCRIPTION. "Adult male in spring and summer: Whole head, throat, and chest black, 

 except for white streaks on side of head and along throat, and bright yellow spot over 

 lores; breast and belly pure white; sides streaked with black; back gray, more or less 

 streaked with black; wings with two white bars; tail with inner webs of two outer 

 feathers mainly white. Adult female in spring and summer: similar, but colors duller; 

 crown usually gray, streaked with black; black of throat largely mixed with white. 

 Adult male in fall and winter: like summer male, but gray of upper parts tinged with 

 brown, and black markings restricted, sometimes nearly obsolete. Adult female in 

 fall and winter: like summer male, but plumage softer and streaks on back and upper 

 tail coverts obsolete or wanting. Young male in first fall and winter: like adult winter 

 male, but gray of upper parts browner; crown brownish gray except on front and 

 sides; streaks on back and upper tail coverts obsolete or concealed; black of throat 

 with white tips to feathers; white of under parts tinged with yellowish. Young 

 female in first fall and winter: entire upper parts brownish gray, crown bordered with 

 dusky; white of under parts strongly tinged with brown. Male: length (skins) 

 4.13-4.65, wing z. 35-1. 62., tail 1.91-2.. 17, bill .31-. 38. Female: length (skins) 4.2.1- 

 4.80, wing 1.13-1.47, tail i. 85-1.01, bill .33-. 38." (Bailey) Nest: A compact cup 

 of plant fibers, lined with feathers, sometimes placed low in bushes or small trees 

 and at other times high in big conifers (Plate 85, B). Eggs: 3 or 4, white, spotted 

 on the larger end with brown and lilac. 



DISTRIBUTION. General: Breeds from southern British Columbia, Nevada, and 

 northern Utah south to Lower California, Arizona, and New Mexico. Winters in 

 Mexico. In Oregon: Common summer resident of western Oregon and also of eastern 

 Oregon in juniper trees in Wasco, Jefferson, Deschutes, Crook, Klamath, Lake, and 

 Harney Counties. Not common elsewhere in eastern Oregon. 



THE BLACK-THROATED Gray Warbler (Plate 85, B) has a peculiar distribu- 

 tion for the State. It is a common summer resident and breeding species 

 of the valleys and lower slopes throughout western Oregon, where there 



