26 



HISTORY OF 



which in the female approaches to white. In the winter plumage, 

 except in size, the resemblance is still more near; the Rock 

 Grouse being of a snowy white, with the exception of the six 

 larger quills which are black, and the tail feathers, which, (with 

 the exception of the two lateral ones which are white,) are 

 also black, slightly tipped with white in the male ; a black 

 stripe passes from the nostrils, through the eye, to the back 

 of the head. 



