of the United States. 
60 
Bill robust, elongated, convex, curved, compressed, en- 
tire, pointed, with divergent bristles at base ; mandibles sub- 
equal, edges somewhat indexed : nostrils rounded, obvious, 
half covered by an arched membrane : tongue cartilaginous, 
slightly bifid at tip. Inner toe free. First primary a 
little shorter than the second, third, and fourth, which are 
longest. 
Female similar to the male in colour. 
Feed on insects and berries. Conceal themselves in thick 
bushy places. Alight on the ground, but always near their 
hiding places, to which they retire as soon as observed. 
Song greatly varied. Flight irregular. 
Peculiar to America; composed of but one species. Inter- 
mediate between Muscicapa and Tanagra, but well placed 
between Turdus and Vireo. 
36. Icteria viridis, Nob. Greenisli-oli ve ; throat and breast 
yellow; belly and line encircling the eyes, white. 
Yellow-breasted Chat, Pipra polyglotta , Wils , Am. Orn. 
i. p. 90. pi. 6. Jig. 2. 
Muscicapa viridis, Gin. Icteria dumicola , Vicill. 
Inhabits during summer all parts of the United States: 
common : winters in tropical America. 
18 . VIREO. 
Muscicapa, Tanagra, L. Gm. Lath. Muscicapa, Briss. 
Temm. Uireo, Muscicapa, Sylvia, Vieill. 
Bill rather short, a little compressed, with bristles at 
base ; upper mandible curved at tip, strongly notched ; lower 
shorter, recurved at tip : nostrils basal, rounded : tongue car- 
tilaginous, bifid at tip. Tarsus longer than the middle toe. 
Wings subacute; second or third primary longest. 
Female differing but little from the male. More or less 
tinged with green. 
Usually insectivorous, but sometimes feeding on berries. 
Live chiefly on trees, and rarely alight on the ground. 
Vol. ]T, 9 
