384 NORTH AMERICAN BIRDS. 



j 1 . Tail-feathers narrow, the middle ones, at 



least (sometimes all), acuminate. 

 k l . Distance from bend of wing to tips 

 of longest greater wing-coverts 

 greater than from latter point to 

 tip of longest quill. 



Spiza. (Page 451.) 

 A 2 . Distance from bend of wing to tips 

 of longest greater wing-coverts 

 less than distance from latter 

 point to tip of longest quill. 

 I 1 . Middle toe, with claw, decidedly 

 shorter than tarsus. 



Poocsetes. (Page 406.) 

 P. Middle toe, with claw, not 

 shorter than tarsus.... Am- 

 modramus. (Page 407.) 

 f . Tail-feathers broader, not acuminate. 

 A 1 . "Wing more than 2.25. 



I 1 . Hind-claw decidedly longer than 



its digit. 



m 1 . Bill tapering very rapidly 

 to the acute tip, the 

 cutting-edge of upper 

 mandible distinctly con- 

 vex or lobed toward 

 base ; nostrils concealed 

 by small antrorse feath- 

 ers Passerella. 



(Page 433.) 



m 2 . Bill tapering gradually to 



the rather obtuse tip, 



the cutting-edge of the 



upper mandible not 



convex or lobed toward 



base ; nostrils exposed. 



Pipilo. (Page 435.) 



P. Hind-claw not longer than its 



digit. 



m 1 . Tertials elongated much 

 beyond secondaries, 

 nearly equalling long- 

 est primaries. 



Calamospiza. 

 (Page 452.) 



