Icterus (Cont*d*) 
d. Forehead and vhole of auricular region 
orange, yellow, or olive-green; wing- 
coverts marked with white* 
sclateri 6 
aa* Tail distinctly bicolored, black and yellow or 
black and orange* 
b * Pileum and hindneck yellow* 
me some las <$ 9 
bb* Pileum, except sometimes forehead and hind- 
neck black* 
cr* Head entirely black; outer webs of greater 
wing-coverts black basally. 
galbula 6 
cc» Head partly yellow or orange; outer webs 
of greater wing-coverts wholly white* 
bullockii 6 
aaa* Tail neither entirely black nor distinctly 
bicolored, mostly plain olivaceous or dusky* 
b* Throat black or dusky 
c* Larger, wing 101*6 or more* 
cc» Wing less than 101.6 
d* Back without any black 
spurius 6 imm* 
dd * Back withmore or less black* 
e|* Tail more than 78*7* 
wagleri imm* 
ee* Tail not more than 78*7• 
f* Pileum without streaks or spots of 
black* 
bullockii $, 6 imm* 
ff* Pileum streaked or spotted with 
black. 
galbula i$* 6 imm 
