150 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



Group 2. Wing, more than 5 inches long. 



Section 1. The following species do not have the greater 

 portion of the primaries white. 



A tuft of black feathers on sides of the neck; tarsus not onth-ely feathered; 

 axillary plumes, white barred with brown. 



Ruffed Grouse "Partridge.' 



Bonasa umbelhis, and races. 

 See No. 238. 



Tarsus, entirely feathered; axillary plumes, entirely white; no elongated 



tufts of feathers on sides of neck ; tail, pointed. 



Prairie Sharp=tailed Grouse. 



Pediocoites phudianellns campestris. 



See No. 247. 



Tarsus, entirely feathered; axillary plumes, white; sometimes with faint bars 



near tip ; a tuft of teu or more elongated feathers on each side of the neck; 



tail, not pointed; the ends of the neck plumes are not pointed, and the axillary 



plumes are very rarely barred on the whole feather, as in the Martha's Vineyard 



species. 



Prairie Hen. Pinnated Grouse. 



Tympanurhtis amcricamis. 



See No. 245. 



