3S4 NORTH AMERICAN BIRDS. 



f. Tail-feathers narrow, the middle ones, at 



least (sometimes all), acuminate. 



A'. 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:'. Distance from bend of wing to tips 



of longest greater wing-coverts 



less than distance from latter 



point to tip of longest quill. 



P. Middle toe, with claw, decidedly 



shorter than tai-sus. 



Poocaetes. (Page 406.) 



P. Middle toe, with claw, not 



shorter than tarsu.s.... Am- 



modramus. (Page 407.) 



J*. Tail-feathers broader, not acuminate. 



A'. Wing more than 2.25. 



?'. Hind-claw decidedly longer than 

 its digit. 

 ??i'. 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.) 

 ?n'. Bill tapering gradually to 

 the rather obtuse tip, 

 the cutting-cdgo of the 

 upper mandible not 

 convex or lobod toward 

 base ; nostrils exposed. 

 Pipilo. (Page 435.) 

 P. Hind-claw not longer than its 

 digit. 

 }k'. Tertials elongated much 

 beyond secondaries, 

 nearly equalling long- 

 est primaries. 



Calamospiza. 

 (Pago 452.) 



