KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



Crown, black, with white stripe in middle; underparts, ashy, shading to pale buff 

 on the flanks; no white on tail feathers. 



White=crowned Sparrow. 



Zonotrichia leucophrys. 

 See No. 422. 



Crown and back, grayish or buffy, streaked with black ; shoulder (lesser wing 

 coverts), rufous brown; breast, streaked; greater part of outer tail feather, 

 including outer web, white. 



Vesper Sparrow. 

 Bay=winged Bunting. 

 Grass Finch. 

 Pooccetes gramineus, 

 See No. 408. 



Crown and back, slaty brown, or dull 

 rufous brown ; rump, and upper sur- 

 face of tail feathers, light rufous 

 brown; underparts, white, heavily 

 streaked and spotted on breast and sides 

 with rufous brown. 



Fox Sparrow. 



Passerella iliaca. 



See Xo. 439. 



