146 Mr. Douglas 07i some Species 



This species appears to be an inhabitant of a more temperate 

 climate than the preceding one, as it is never seen higher than 

 42° north latitude, and even that very sparingly in comparison 

 to O. picta or O. Californica. The species do not associate 

 together. In manner they are similar, at least as far as the 

 opportunity I had of observing them went. I have never seen 

 them but in winter dress, and know nothing of their nesting. 



Mr. Vigors, the zealous and enlightened Secretary of the 

 Zoological Society, in his partial kindness has done me the 

 honour of placing my name to this species. To that gentle- 

 man I communicated an account of this bird shortly after my 

 return to England ; and subsequently he has had an opportunity 

 of seeing a solitary specimen in a collection brought home by 

 Captain Beechey. 



In addition to Tetrao, I subjoin a few notes relative to some 

 already described species. But, in the first place, I may be 

 permitted to mention a new species, nearly allied to T. Lago- 

 pus, but much smaller, with a white tail, and when in winter- 

 dress, snow-white, without the least particle of black. This is 

 an inhabitant of the Rocky Mountains and the snowy peaks of 

 North-west America. During my journey across the dividing 

 ridge in April 1827, I killed several, which, from the extreme 

 difficulties to be surmounted at that early season of the year, I 

 was reluctantly obliged to leave behind me. This loss I do 

 not now regret, as Dr. Richardson was fortunate enough to 

 secure the species, an accurate description of which will be 

 shortly given by him in his forthcoming Fauna of British North 

 America. 



T. Lagopus of Gmelin is not an uncommon bird on the Rocky 

 Mountains ; near the verge of perpetual snow, in latitude 54° ; 



to 



