112 KET AND DESCRIPTION 



I. Breast with yellow ; tail slightly double-rouuded and the under 



feathers not white blotched 52. Dickcissel. 



I. Tail somewhat longer than the wings ; bend of wing yellow. (J.) 

 J. Head striped and two of the stripes white with yellow in front ; a 



white throat patch 30. White-throated Sparrow. 



J. No yellow on head ; upper tail feathers not barred 



30. Bachman's Sparrow. 



J. No yellow on head ; upper tail feathers barred i 



37. Cassin's Sparrow. 



K. Rump, tail, and wings with much rusty-red ; large arrow-shaped 



spots on the white breast 41. Fox Sparrow. 



K. Male with much red ; female olive-brown ; tail an inch .slunter than 



tiie wings and notched at tip 2 3. Purple Finch. 



K. Under parts pure white, except black spots on the breast; tail 



rounded,'* and the under feathers black, with white tips 



27. Lark Sparrov/. 



K. Wing with a conspicuous, light-colored (white or whitish) patoh ; 



tail about .sciuare* 53. Lark Bunting. 



K. Tail rounded ; wing, 3} or less long ; crown pure while or ]iale 



browni.sh, margined with darker 20. White-crowned Sparrow. 



K. Tail rounded ; wing, 3\-3| ; center of crown more or h-ss black. . . 



28. Harris's Sparrow. 



L. Breast with yellow ; throat with more or less black ; bend nf wing 



yellow 52. Dickcissel. 



L. Tail double-rounded ; ^ middle and under pair of feathei-s about equal 



in length, the others gradually longer. (P.) 

 L. Tail rounded ; « the middle pair of feathers about the longest ; the 

 under feathers gradually shorter. (M.) 

 M. Culmcn, \ or more long ; bend of wing yellow. (0.) 

 M. Culmen, less than \ long. (N.) 

 N. Tail and wings almost exactly equal in length ; back feathers black, 



bordered by buffy ; no yellow in front of eye or on bend of wing 



23. Leconte's Sparrow. 



N. Tail measurably shorter than wing ; back brown streaked witli 



black ; bend of wing pale yellow 22. Henslow's Sparrow. 



0. Back almost without streaks ; breast slightly streaked with dusky; 



yellow in front of eye 25. Seaside Sparrow. 



0. Back .somewhat streaked ; breast broadly struakod with black ; 



yellow in front of eye 26. Dusky Seaside Sparrow. 



0. Center of crown with a distinct stripe of ashy ; breast and sides 

 distinctly streaked with blackish 24. Sharp-tailed Sparrow. 



