252, KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 
Crown, rump, and underparts, rose red; more or less white on wing; man- 
dibles, crossed. 
White-winged Crossbill. 
Loxia leucoptera (male). 
See No. 393. 
Crown, rump, and greater part of under plu- 
maye, dullred; no white on the wing; 
mandibles, crossed. 
American Crossbill. 
Loxia curvirostra minor (male). 
See No. 392. 
Wings, with more or less white; general plumage, grayish olive, or olive 
green, more or less strongly tinged with yellowish green on rump; mandi- 
bles, crossed. 
White-winged Crossbill. 
Loxia leucoptera (female). 
See No. 392. 
Underparts, tinged with green, or olive green; yellowish green on rump; no 
white on wings: mandibles, crossed. 
American Crossbill. 
Loxia curvirostra minor (female). 
See No. 392. 
