146 
DUSKY GROUSE. 
into Asia, but are entirely different from any of the 
species on the American continent, which we shall 
next notice. 
The first of the American births comin" nearest in 
size and form to those we have been just describing, 
is the Dusky Grouse, Telrao obscurus of Say, which 
was first noticed to science by that gentleman in his 
description of the various productions, tlie reward of 
the expedition to the Rocky Mountains. Bonaparte 
figured his specimen a female ; and in this country 
two beautiful representations of both sexes appeared 
in the Northern Zoology. It is known to inhabit 
the Rocky Mountains from latitude 40° to 64°. In 
length it is about two feet : and the plumage exhi- 
bits the beautiful glossy tints of the others, mixed 
with grey and white. 
The next of the American grouse which we have 
to notice is 
