26 



Back streaked with black, bay and flaxen ; 



breast ashy with a distinct dusky spot at 



center, Tree Sparrow. 



Back mixed black and olive ; crown, chin 



and throat more or less chestnut. 



Bay-breasted Wauhler. 

 Black ; belly white ; sides and much of wings 



and tail flame-red, Male Redstart. 



dd. With more or less yellow. 



e. With a slight crest ; bill broad and flat ; olive 



green above ; under parts yellow, brightest on 



the belly, Yellovs^-bellied Flycatcher. 



ee. No crest. 



f . Bill not flat ; I)elly white ; throat bright yellow, 



Yellow-throated Vireo. 

 ff. Bill short and thick ; lemon yellow with cap, 

 wings and tail black ; or olivaceous above, 

 soiled yellowish beneath, Goldfinch. 



fff. Bill neither notably flat, nor short and thick, 

 usually rather slender, 

 g. Chin and throat bright 3'ellow or even orange, 

 h. With conspicuous black markings, 

 i. Crown black. 



j. Ear-patch orange-brown ; breast and sides 

 thickly streaked, 



Male Cape May Warbler. 

 jj. No conspicuous ear-patch. 



Upper parts yellowish-olive ; beneath 



unstreaked, Male Wilson's Warbler. 



Upper parts mainly black ; spot on 



crown, line over eye, chin and throat 



intense orange, 



Male Blackburnian Warbler. 



