234 



KEY TO THE BIHDS OF EASTERN NORTH AMERICA. 



Uuderparts, blue; general plumage, blue; wings 

 and tail, black, edged with blue. 



Indigo Bird. 

 Indigo Bunting. 



Passerina cyanea (male). 

 See No. 446. 



Uuderparts, more or less blotched with blue. 



Indigo Bird. 



Passerinn cyanea (immature). 

 See No. 446. 



Part 2. The following species have the underparts not marked with 

 red, blue, yellow, or green ; breast, distinctly streaked ; carpal joint (bend 

 of wing), edged with yellow: — 



Breast and flanks, tawny; a tawny stripe over the eye; outer tail feathers, 

 decidedly shorter than middle ones. 



Sharp-tailed Sparrow. 



Ammodramus caudact7is, and varieties. 

 See No. 414. 



Breast, white, heavily streaked with black; back, black, the feathers 

 edged with olive and gray ; outer tail feathers, shortest. Occurs only in 

 Florida. 



Dusky Seaside Sparrow. 



Ammodramus nigrescens. 

 See No. 419. 



