WOOD WARBLERS 417 



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

 and tail dusky, wings with two white bands and greenish edgings ; inner 

 webs of two or three outer tail feathers with subterminal 

 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 Fig. 526. 

 in fail and it-inter : upper parts olive green shading to gray Black-poll 

 on upper tail coverts ; back and scapulars, sometimes crown Warbler, 

 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 winter: 

 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. Jirst plumage : upper parts light grayish brown, streaked with black 

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

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

 in winter birds. Male : length (skins) 4.65-5.51, wing 2. 81-3.05, tail 1.91-2.13. 

 Female .; length (skins) 4.53-5.00, wing 2.72-2.95, tail 1.77-2.01, bill ,35-.43. 



Distribution. Breeds from northern New England and the Catskill 

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

 Alaska ; migrates west to New Mexico. Colorado, and Montana, and south 

 to northern South 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 



grav. 



Food. Insects. 



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

 small numbers, west to the Rocky Mountains, 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 

 Manitou, Colorado, at an altitude of 11,000 feet. 



662. Dendroica blackburnise (GmeL). BLACKBURNIAN WAR- 

 BLER. 



Adult male in spring and summer. Throat brillant orange yellow; rest 

 of under parts pale yellowish ; sides streaked with black ; 

 crown black with yellow or orange patch ; superciliary yel- 

 low- or orange ; rest of upper parts black, streaked with white 

 on back ; wings with broad white patch ; tail with three outer 

 feathers white except shafts and tips. Adult female : similar, Fi g- 52 7. 

 but black replaced by olive brown, streaked ; orange replaced by yellow ; 

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

 and icinter : like adult female, but without yellow spot on crown ; yellow 

 of throat and chest paler. Young female in jirst fall and ir inter : similar 

 to adult female, but upper parts browner, streaks less distinct ? white 

 markings restricted ; under parts buffy ; throat sometimes pale buffy ; 

 streaks on sides dull brownish. Young, Jirst plumage : upper parts brown, 

 middle of crown lighter ; back and rump indistinctly streaked ; supercil- 

 iary stripe and throat pale buffy ; chest darker, faintly spotted ; rest of 



