164 FRANKLIN’S GROUSE. 
Between the Cascades and Rocky Mountains 
this larger grouse seems to be replaced by, if not 
a distinct species, a very well-marked variety. In 
size it is a trifle smaller, but the great mark of 
distinction is the entire absence of the white 
band at the end of the tail. Finding, however, 
in some mature birds a trace of white, I hesitate 
as to making it a new species. The young 
nestlings, eggs, and mature male and female 
birds, from east of the Cascades, are in the 
British Museum, as well as others from the west 
or coast slope. In habits, periods of arrival and 
departure (or perhaps appearance and disappear- 
ance would be the more correct expressions), the 
two species or varieties are in every respect 
similar. Where they go during the winter I 
cannot imagine; the Indians say they go to sleep 
in the pine-trees. Ido not think they migrate, 
but only retire into the very thickest trees, and, 
living on the fronds, pass the winter thus sheltered 
in the bush. 
Franxxi’s Grouse (Tetrao franklinii, Doug- 
las).—I believe this bird is but rarely found west 
of the Cascades; but on the eastern side, and along 
the whole district lying between the Cascades 
and Rocky Mountains, it is tolerably abundant, 
always keeping in the mountains, often as high as 
