250 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 
Shoulder (lesser wing coverts), rufous brown; at least half of outer tail 
feathers, white; back, streaked. 
Vesper Sparrow. 
Poocetes 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. 
Pine Finch. Passerina cyanea. 
See No. 446, 
