WOOD WARBLERS 413 



on back and scapnlars ; yellow crown patch concealed by brown tips to 

 feathers ; throat and chest brownish white or buff y brown, chest streaked 

 with black ; yellow patches obscured, black patches with white edg-es to 

 feathers. Adult female in fall and iv inter : like winter male, but smaller, 

 upper parts browner, yellow crown patch restricted or obsolete ; under 

 parts pale buffy brown in front and on sides ; median parts of breast and 

 belly yellowish white ; yellow breast patches indistinct or obsolete. Young, 

 first plumage : streaked above and below ; wing's and tail much as in 

 adults. Male: length (skins) 4.72-5.51, wing- 2.7(5-o.07, tail 1.07-2.36, 

 bill .35-.4o. Female: length (skins) 4.(5.5-5.51. wing 2.64-2.95, tail 2.02- 

 2.32, bill .32-.41. 



Remarks. — The yellow-rumped and Audubon warblers are similar, but 

 can be distinguished by the throat, which is white in coronata and yellow 

 in auduboni. 



Distribution. — North America, chiefly east and north of Rocky Moun- 

 tains (to Hudson Bay region), straggling westward to the Pacific ; breeds 

 from Alaska to northern Ignited States, wintering from southern New 

 England and the Ohio valley south to the West Indies and Panama; 

 accidental in Greenland and eastern Siberia. 



Xest. — Usually low in coniferous trees, made of grasses, twigs, and root- 

 lets, lined with finer grasses, feathers, and hair. Eggs : 3 to 6, white, 

 creamy, or bufFy, spotted or blotched chiefly on or around larger end with 

 brown and lilac, sometimes mixed with small black markings. 



Food. — Insects, their eggs and larvte, and wild berries. 



The yellow-nimp, the eastern representative of the Audubon 

 warbler, migrates through Colorado, and Prof. Cooke says it is not 

 uncommon for two or three weeks on the plains along the foothills 

 of the Rocky Mountains, where a few range up to 9000 feet. It mi- 

 grates from ten daj's to two weeks ahead of auduboni, but in ]May 

 the two species are often found together. 



656. Dendroica auduboni (Totvns.). Audubon Warbler. 



Adult male in sjjring and summer. — Throat and rump yellou- : under parts 

 with patches of wliite. yellow, and solid black ; upper parts bluish gray, 

 streaked with black ; wing coverts witli 

 large white patches ; tail black, inner 

 webs of four or five outer feathers with 

 large s\il)teniiinal patt-h of white. Adult 

 female in s]>ring and summer: like sum- 

 mer male, hut duller, and with less black 

 on under parts : upper })arts usually more 

 or less tinged with l)r<)\vn : yellow crown 

 l)at<h restricted, and i)artly tipped with 

 brownish gray ; wings with narrower 

 hands : cliest and sides grayisli. m.irked 

 witli black; color pjitches restricted. 

 Adult ntalf in /all and irintir: duUer 

 and browner tjj.in summer males, upjjcr 

 parts washed with Ijrown. wing mark- 

 ings tinged with brown ; black of chest ' ''*' " 

 and sides mostly concealed by brownish white edges to feathers, .\dult 

 femah' infill and winter : like winter male. Init smaller and tluller. h.uk 

 withotit sliarply defined streaks; yellow patches paler. iiitl nu.re lestrirted ; 



