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yellow, sides streaked with black. Wing with a large white patch. Fall, female and 

 young birds have the white wing patch reduced to two bars. The black and white 

 of the upper parts more or less obscured by brownish or olive. The orange in vary- 

 ing degrees reduced and replaced by yellow. 



Chestnut-sided Warbler. Wing with two well marked yellowish bars. Tail mark- 

 ed with white Underparts and ear coverts white, more or less tinged with grav, espe- 

 cially on the latter in voting and fall plumages. Upp>;r parts yellowish-green The 

 adult male in spring has the crown bright yellow, rest of the upperparts heavily 

 streaked with black, nape gray, a black stripe from nape through eye to base of bill 

 and thence, making an acute angle, down sides of throat, where it becomes chest- 

 nut, broadens and is continued to the flanks. Adult spring females and fall males 

 have those bright colors variously reduced. 



Bay-breasted Warbler. Adult spring male with top of the head, throat and sides 

 chestnut. Middle of the belly whitish. Forehead and face black A huffy cross 

 patch on the side of the neck. Rack grayish-buff streaked with black. Wings with 

 two white bars, tail with white markings The young have the upperparts olive- 

 green more or less streaked with black, underparts whitish, tinged with yellow on the 

 throat, with huffy elsewhere, and lack the bold black and chestnut colors. Females 

 and adult fall males have a more or less intermediate plumage Wings and tail are 

 rather constant in all plumages. 



Blackpoll Warbler. Adult male in spring has a solid black cap and is streaked 

 with black ami gray above. The under parts and cheeks are white, the latter separ- 

 ated from the throat bv a narrow black streaking which extends backward from the 

 base of the bill. Sides streaked with black. Fall males, females and young are 

 variously greenish above more or less streaked with black, whitish below more or less 

 washed with vellow, with or without black streaks on the sides Wing with two 

 bars and tail with white m'arking in all plumages. 



Pine Warbler. Adult spring males are vellow green above. Yellow below turn 

 ing to white on the belly, the underparts sometimes with a few streaks, the wing with 

 white bars, the tail with white markings.. The greens and yellows fade in other 

 plum iges. Fall, female and young birds are variously duskier, some specimens being 

 peculiarly colorless and dusky 



Prairie Warbler. Above greenish, face and underparts yellow. Marks through 

 eye, on side of throat, and on side of neck black in adult male, dusky and more or 

 less obscure in other plumages, seldom absent. Wing bars yellowish, tail with white. 

 Spring male with a chestnut area in the center of the back, of which there are some- 

 times traces in the female. 



Vellow Palm Warbler Adults in spring are brownish olive green above, bright- 

 er on the rump. fail with and wing without white. Line over eve eve ring and 

 underparts vellow. Streaked with chestnut below. Top of the head chestnut. 

 Young and fall birds are duskier, the vellows paler, the streaking of the underparts 

 grayer, the chestnut cap less pronounced or wanting. 



Ovenbird. Above wings and tail, uniform brownish olive, below white, streaked 

 with black Crown bordered bv two narrow dark lines, between which it is more or 

 less orange-brown, — this color strongest and deepest in the adult spring male. A 

 conspicuous light eve-ring. 



Louisiana Water-Thrush. Above wings and tail, uniform brownish olive. A 

 white stripe over the eye. Below whitish more or less strongly buffy posteriorly, 

 streaked with dark. The throat unmarked. Plumages similar. 



Northern Water-Thrush Above wings and tail, uniform olive. A buff stripe 

 over the eye. Below lemon yellow, streaked with dark, the throat more or less 

 streaked. Plumages similar. 



Maryland Vellow- Throat. Above wings and tail olive-green more or less washed 

 with brown Outer vane of outer primary whitish. Throat yellow, fading and be- 



