WOOD WARBLERS 417 



olive, gray, or brown, streaked with black except sometimes on rump ; wings 

 and tail dusky, wings witli two white bands and greenisli edgings ; inner 

 webs of two or three outer tail feathers with subterniinal 

 white patches ; under parts white, chin usually black and 

 sides heavily streaked with black. Adult female in spring and 

 summer : similar, but upper parts dull olive green, streaked 

 with black ; wing bars tinged with yellow ; under parts washed 

 with pale yellowish, sides streaked with dusky. Adult male 

 in fall and winter: upper parts olive green shading to gray 

 on upper tail coverts ; back and scapulars, sometimes crown 

 and rump, streaked with black ; wing bars usually tinged with yellow ; 

 superciliary olive yellowish ; throat, breast, and sides yellowish ; sides and 

 flanks indistinctly streaked: belly white. Young in first fall and iv inter : 

 like adult fall male, but under parts yellow except on under tail coverts ; 

 upper tail coverts olive green instead of gray, back less distinctly streaked. 

 Young, first plumage : upper parts light grayish brown, streaked with black 

 except on rump, which is barred or mottled with black ; under parts whitish, 

 tinged w ith olive yellow in front, and mottled with dusky ; wings and tail as 

 in winter birds. ^lale : length (skins) 4. (t.V.'j.;")]. wing 2.Sl-.'J.0r),tail 1.1)1-2.13. 

 Female: length (skins) 4..V]-r).00. wing 2.72-2.9"), tail 1.77-2.01. bill .::55-.48. 



Distribution. — Breeds from northern New England and the Catskill 

 Mountains west to the Ifocky Mountains and north to Hudson Bay and 

 Alaska ; migrates Avest to New Mexico, Colorado, and Montana, and south 

 to northern ISonth America, through West Indies ; not recorded from Mex- 

 ico or Central America ; accidental in Greenland. 



Nest. — On lower branches of coniferous trees, in the north often on the 

 ground ; bulky, warmly lined with feathers. Eggs : usually 4. white, 

 creamy, or buffy. spotted or blotched, often wreathed with brown and lilac 

 gray. 



Food. — Insects. 



The eastern black-poll, Prof. Cooke says, comes regularly, but in 

 small numbers, west to the Rocky jNIountains, occasionally being 

 common during migrations both on the plains and at the base of 

 the foothills. There is one breeding record for Seven Lakes, near 

 :Maiiitou, Colorado, at an altitude of 11,000 feet. 



662. Dendroica blackburniae {(imel.). BL.\rKHrHNiAN W.vu- 

 r.Li.i{. 

 ^Idult male in .^iprmg and summer. — Throat brillant orange yellow; rest 

 of under parts pale yellowish; sides streaked with black; 

 crown })lack with yellow or or.mge ])atch ; superciliary yel- 

 low or oiange ; rest of upper parts lihick. streaked witli wliite 

 on back : w ings with l)ioa(l white p.itch ; tail with three outer 

 featliers white excej)t sliafts and tips. Adult female : similar, ^''K- -'»-''<'■ 

 but black replaced hy olive brown, streaked ; oi.ange replaced by yellow; 

 wings :ind tail duller, white markings restricted. Young male in Jirst fall 

 and u-inti r : like adidt female, but \Nithout yellow spot on crown; yellow 

 of throat .-ind ehest ])aler. Vaitng Ji malt in frst fall and winter : similar 

 to adult female, hut upper parts lirowner. sfn-aks less distiut-t ; white 

 markings restricted; under parts bully; thro;it sometimes i>ale huffy; 

 streaks on sides dull brownish. Y'tung, first plumagv : upper parts brown, 

 middle of crown lighter ; back and rumj) incHstinctly streaked ; supercil- 

 iary stripe and throat pale bulfy ; chest darker, faintly spotte<l : ri'st of 



>ellow ; rest 



