LAND BIRDS. 463 



AA. Smaller, wing 2.75 or less. K, KK. 

 K. Streaked above and below. L, LL. 



L. Crown with a distinct median light stripe. M, MM. 



M. Smaller, wing barely 2 inches. Leconte's Sparrow. 



No. 224. 

 MM. Larger, wing always more than 2 inches. N, NN. 



N. Tail short, barely 2 inches. Henslow's Sparrow. 



No. 223. 

 NN. Tail long, 2.25 to 3 inches. 0, 00. 



O. Chest white, broadly streaked and spotted with 

 brown or blackish, usually with a central 

 dark patch. Song Sparrow. No. 235. 

 00. Chest gray or buff with narrow or indistinct 

 dark streaks and no central dark patch. 

 P, PP. 

 P. Chest gray or brownish gray with broad 

 indistinct streaks. Swamp Sparrow, 

 (young). No. 237. 

 PP. Chest buff with distinct narrow streaks of 

 blackish. Lincoln's Sparrow. No. 236. 

 LL. Crown without distinct median light stripe; tail feathers 

 acute. Nelson's Sparrow. No. 225. 

 KK. Streaked above, but plain below. Q, QQ. 



Q. Bend of wing and spot above eye yellow, crown without chest- 

 nut. Grasshopper Sparrow. No. 222. 

 QQ. No yellow on bend of wing or above eye, forehead black, 

 crown chestnut. Swamp Sparrow (adult). No. 237. 



Group 3. 



Closed tail square or nearly so. 



A. With more or less blue in plumage. Indigo Bird, male. No. 242. 

 AA. Without blue. B, BB. 



B. With more or less bright yellow. C, CC. 



C. Only bend of wing and streak over eye yellow. Savanna 



Sparrow. No. 22 L 

 CC. Breast vellow. Black-throated Bunting. No. 243. 

 BB. Without yellow. D, DD. 



D. Outer (lateral) tail-feathers largely white. E, EE. 



E. Upper parts and breast slate-colored, not streaked, bill 



white or pink. Junco. No. 234. 

 EE. Upper parts and breast streaked with Hght and dark, 

 bill dusky. Vesper Sparrow. No. 220. 

 DD. No white in the tail. F, FF. 



F. Upper parts distinctly streaked; wing more than 2.75 



inches. English Sparrow. No. 217. 

 FF. Upper parts indistinctly or not at all streaked; wing 

 less than 2.75 inches. Indigo Bird (female). No. 242. 



