126 Synopsis of the Birds 



Confined to the cold and temperate climates of the northern 

 hemisphere. 



SUBGENUS l BOIfASIA. 



Tetrao, Vieill, Coqs de bruyhes, 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 umbellus, 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, Wih. Am. Orn. vi. p. 

 45. pi. 49. male. 



Inhabits common throughout the Union, Canada, and 

 higher northern latitudes, in woody countries, especially 

 mountainous pine districts. 



SUBGENUS II. TETRAO. 



Tetrao, Vieill. Cnqs de bruyires, Cuv. 



Tetrao, Bonnsa, Stephens. 



Tarsus wholly feathered, toes naked. Not varying much 

 with the seasons. 



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. 



