384 
NORTH AMERICAN BIRDS. 
j. Tail-feathers narrow, the middle ones, at 
least (sometimes all), acuminate. 
i, 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.) 
#’. Distance from bend of wing to tips 
of longest greater wing-coverts 
less than distance from latter 
point to tip of longest quill. 
?, Middle toe, with claw, decidedly 
shorter than tarsus. 
Poocetes. (Page 406.) 
P. Middle toe, with claw, not 
shorter than tarsus.... Am- 
modramus. (Page 407.) 
jf. Tail-feathers broader, not acuminate. 
}’, Wing more than 2.25. 
U, Hind-claw decidedly longer than 
its digit. 
m'. 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- 
CTB....e0eeee Passerella. 
(Page 433.) 
m’, 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.) 
@. Hind-claw not longer than its 
digit. 
m. Tertials elongated much 
beyond secondaries, 
nearly equalling long- 
est primaries. 
Calamospiza. 
(Page 452.) 
