WOOD WARBLERS 419 



streaked with black ; black of throat largely mixed with white. Adidt male 

 in f all and winter : like summer male, but gray of upper parts tinged Avith 

 brown, and black markings restricted, some- 

 times 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 ob- 

 solete or concealed ; black of throat with 

 white tips to feathers ; white of under parts ^'= • ^28. Black-throated Gray 

 tinged with yellowish. Young female in frst 



fall and icinter : entire upper parts brownish g-ray, crown bordered with 

 duskv ; white of under parts stronglv tinged with brown. Male : length 

 (skins) 4.i;]-4.()5, wing 2.;^5-2.()L\ tail 1.92-2.17, bill .32-.8S. Female: 

 length (skins) 4.21-4.S0, wing 2.1;]-2.4T, tail 1.S5-2.01, bill .38-.38. 



Hemarks. — The yellow spot over lores is diagnostic. 



Distribution. — Breeds in Transition and Upper Sonoran zones from 

 British Columbia to Lower California and southern Arizona, and from 

 Colorado to the Pacific coast ; migrates to southern Mexico. ' 



Xest. — Low down in dense thickets of scrub oak, or hig-h up in pines, 

 compact, cup-shaped, like that of D. cestiva, made of gray plant fibers, 

 lined with feathers. J^ggs : o or 4, white, tinged with pink or cream, 

 spotted on or around larger end with reddish brown and lilac gray, 

 usually mixed with a few darker specks. 



Food. — Frequently green caterpillars. 



The quiet little black-throated gray warbler is a restful contrast to 

 the -whirligig- of perpetual motion, the omnipresent Audubon warbler 

 of the Sierra Nevada. It peems to be especially a bird of Transition 

 low growth, such as scrub oaks, piiions. junipers, and manzanitas. 



Along the North Fork of the Yuba River in the Sierra we found 

 it singing in the bushes along the road, and in the junipers on a 

 hillside near camp. Its song is a simple warbler lay. zee-ee-zee-ee, 

 ze, ze, ze, with the quiet woodsy quality of rirens and ccerulescens, 

 so soothing to the ear. 



666. Dendroica chrysoparia sd. s,- Salv. Golden-cheeked 



W'.Mir.i.i i:. 

 Adult male in s/>ring and sumnirr. — l'])p('r parts and throat black, upper 

 parts sometimes tinged with olive green; 

 sides of head bright i/ellnw. interruj)t(tl bi/ 

 narroir black strrak t/iroug/i eijc : foreliead 

 usually witli yellow spot or streak ; breast 

 and belly white, sides streaked with bl.ick : 

 wings and t.ail blark, wings with two white 

 bands and tail with tliree outer pairs of 

 featliers with inner web largely white. 

 Adult fi'iii(dp in snrin'i and suninnr: like ,,. ^,„ 



summer m.ile. but u))per parts olive green, 

 indistinctly .streaked ; tliroat yellowish, black showing through ; w ings 



