124 AMERICAN GAME BIRD SHOOTING 
is the fact they: must give great shooting in such 
situations. 
It is readily conceivable that this bird might be in- 
troduced into the mountains of the Eastern States— 
for example, in New England, Pennsylvania, Virginia 
and North Carolina, and in these sections, if for a time 
protected, might establish itself. In the West it is 
usually found at altitudes much higher than these, 
though, in summer, females and young broods of the 
dusky grouse inhabit essentially the same territory as 
the ruffed grouse. 
The dusky grouse has but three vernacular names 
commonly in use—blue grouse, pine grouse and gray 
grouse. Dusky grouse and blue grouse are the two 
most common. 
