74 KEY AND DESCEIPTION 



I. Throat yellow or orange ; crown with a small or large yellow or 

 orange spot ; under tail feathers with outer edge white edged as 



well as white blotches on the inner web 



22. Blackburnian Warbler. 



I. Sides of head bright yellow ; inner web of under tail feathers en- 

 tirely wliite ; outer web white at base 



24. Black-throated Green Warbler. 



I. Upper parts, chin, throat, breast, bill, and feet black ; sides of head 

 yellow. In southern Texas the Golden-cheeked Warbler (GOG. 

 Dendroka cfinjsopm-ia) can be found. lis lialiitat extends to Cen- 

 tral America. (See p. 87.) 

 I. Not as above ; throat more or less yellow. (J.) 

 J. White tail blotches large and oblique near the end of two or three 

 under tail feathers ; no .sharp markings anywhere. .20. Pine Warbler. 



J. Throat definitely yellow ; belly white ; back not gnenish 



28. Yellow-throated Warbler. 



K. Wings with ichite tcing bars;^ back bright olive- 

 green ; eye with a black line extending acro.ss it 



6. Blue-winged Warbler. 



K. Wing coverts yellow, forming a yeUmi- icinij jintrli 



7. Golden-winged Warbler. 



K. A black throat patch surroundrd by yellow (mair) ; bend of wing 

 yellow (female) ; a yelloic icing bar formed only of the lesser cov- 

 erts 5. Bachman's Warbler. 



K. The supposed iiybrids, Brewster's and Lawrence's Warblers might 

 be looked for here. They seem in markings and habits interme- 

 diate between <> and 7. Brewster's has the throat and breast whit^. 

 and Lawrence's has a large black patch on the breast. About a 

 dozen specimens of Lawrence's have been found, chiefly in New 

 Jersey and southern Connecticut, and many of Brewster's from 

 soutliern New England to Michigan. (See p. 7!).) No. 10 (Ten- 

 nessee Warbler) might also be looked for here, as its tail feathers 

 are sometimes marked with white. 

 L. Under tail feathers without white blotches ; wings without wing 



bars. (N.) 

 L. Under tail feathers blotched with white. (M.) 

 M. Body nearly everywhere streaked with black and white, including 



the cn)wn, which has a middle .streak of white 



1. Black and White Warbler. 



M. Crown black ; all other parts much streaked witii black and white ; 



back with .some ashy 21. Black-poll Warbler (male). 



M. Upper parts olive-green more or less streaked with black ; under 

 parts more or less yellowish and somewhat streaked on brea.st and 



sides 21. Black-poll Warbler (female). 



M. Lender parts, especially the crissum, butfy ; crown and ihn'at usually 

 chestnut 20. Bay-breasted Warbler. 



