250 



KEY TO THE BIKDS OF EASTERN NORTH AMERICA. 



Shoulder (lesser wing coverts), rufous brown; at least half of outer tail 

 feathers, white; back, streaked. 



Vesper Sparrow. 



PooccKtes gramineus. 

 See No. 408. 



Back, tinged with rufous brown, and 

 streaked with black ; carpal joint (bend 

 of wing) , edged with pale yellow ; tail, 

 over 2.50; usually an indication of yellow 

 in front of the eye; no white on tail 

 feathers. 



White-throated Sparrow. 

 Zonotrichia albicollis. 

 See No. 423. 



Bill, sharp ; tail, under 2 inches ; entire 

 upper plumage, olive buff, streaked 

 with black ; under plumage, buffy 

 white, or ashy white, heavily streaked 

 with black; more or less yellow on 

 edge and base of wing feathers, and 

 base of tail feathers. 



Pine Siskin. Pine Finch. 

 Spinus pinus. 



See No. 402. 



Crown and back, dull brown, without 

 streaks ; underparts, brownish, whitish 

 on belly; breast streaks, not very pro- 

 nounced, often indistinct (female). 



Indigo Bird. Indigo Bunting. 

 Passerina cyanea. 



See No. 446. 



Piiie Finch. 



