290 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



Crown, grayish ; back and rump, green ; underparts, pale yellow ; chin, whitish ; 

 a buff-white stripe over the eye. (This bird belongs in Section 4, but might be 

 mistaken for a warbler by the novice.) 



Philadelphia Vireo. 



Vireo philadelphius. 



See No. 472. 



Crown and sides of head, with more or 

 less black ; a yellow superciliary stripe ; 



back and rump, olive green. 



Kentucky Warbler. 



Geothlypis formosa. 

 See No. 519. 



Underparts, yellowish olive; crown, with partly concealed orange brown 

 spot ; under tail coverts, greenish yellow. 



Orange-crowned Warbler. 



Helminthophila celata. 

 See No. 492. 



Part 5. The following species have the throat, yellow ; belly, not yellow ; 

 tail feathers, marked with more or less white : 



Back, green, streaked with black ; outer web of outer tail feather, not edged with 

 white; no yellow stripe over eye; chin, whitish; sides of breast and body, 

 streaked. 



Black-poll Warbler. 

 Dendroica striata (female). 

 See No. 504. 



Crown, black, with patch of orange yellow in centre; back and rump, black, 

 with more or less white ; throat, orange ; sides, streaked with black. 



Blackburnian Warbler. 



Dendroica blackburnice (adult male} , 

 See No. 505. 



