of the United States . 127 
Pinnated Grous, Tetrao cupido, Wils. Am. Orn. Hi. p. 104. 
pi. 21 . fig. l. male. 
Inhabits desert open plains in particular districts of the 
Union, avoiding immense intermediate regions. Found in 
Maine, New-Jersey, Long-Island, Pennsylvania, Kentucky, 
Louisiana, Indiana : very common beyond the Mississippi, 
Missouri, and even on the Oregon. 
207. Tetrao obscurus, Say. Slightly crested ; tail rounded, 
blackish, with a broad terminal band of whitish-gray, dotted 
with black ; middle tail feathers mottled, lateral ones plain ; 
toes not pectinated. 
Male unknown.; probably glossy black ? 
Female and young, black brown, varied with ochraceous 
and white. 
Dusky Grous , Tetrao ohscurus, Say , in Long's Exp. ii.p. 14. 
Inhabits the territory of the United States near the Rocky 
Mountains. 
203. Tetrao canadensis, L. Subcrested; blackish; breast, 
superior and inferior tail coverts, banded with white ; tail 
moderate, slightly rounded, of sixteen plain black feathers ; 
toes not pectinated. 
Male blackish, barred with gray-brown : throat black. 
Female and young, much lighter and more varied ; throat 
rufous. 
Tetrao canadensis , L. (Buff. pi. enl . 131.) male. 
Tetrao canace , L. (Buff. pi. enl. m. ) female . 
Inhabits the western wilds of the United States beyond 
the Mississippi, and the north-western part of Maine and 
Michigan : more common in Canada, at Hudson’s Bay, and 
other high northern latitudes. 
209. Tetrao phasianellus, L. Subcrested; mottled; tail 
short, cuneiform, of eighteen feathers ; two middle ones much 
the longest; toes strongly pectinated. 
f 
