126 Synopsis of the Birds 
Confined to the cold and temperate climates of the northern 
hemisphere. 
SUB GENUS I. BO NASI A. 
Tetrao , Vieill , Coqs de hruybes , Cuv. Bonasa , Stephens . 
Lower portion of the tarsus, and toes naked. Not varying 
much with the seasons. 
Live in dense forests of different kinds of trees. 
205. Tetrao tjmbellus, L. Crested ; mottled ; tail elongated, 
rounded, of eighteen feathers, ferruginous, varied with black, 
and with a black subterminal band ; toes pectinated. 
Male, sides of the neck with a ruff of large black feathers. 
Female and young, ruff smaller, dark brown. 
Ruffed Grous , Tetrao umbellus , Wils. Jim. Orn. ,vi. p. 
45 . pl» 49 . male. * * 
Inhabits common throughout the Union, Canada, and 
higher northern latitudes, in woody countries, especially 
mountainous pine districts. 
SUBGENUS II. TETRAO. 
Tetrao , Vieill. Coqs de bruyires , Cuv. 
Tetrao , Bonasa , Stephens. 
Tarsus wholly feathered, toes naked. Not varying much 
with the seasons. 
H v ' 
Found in temperate regions, at even a comparatively low 
latitude, and in level as well as mountainous districts. 
206. Tetrao cupido, L. Subcrested, mottled; tail short, 
much rounded, of eighteen plain dusky feathers ; toes not 
pectinated. 
Male, neck furnished with wing-like appendages, covering 
two loose, orange, skinny bags, capable of being inflated. 
Female and young, destitute of the cervical appendages 
and skinny bags. 
