358 



NORTHERN ZOOLOGY. 



Length, total 



„ of tail . 



„ of wing 



„ of bill above 



Inch. 

 12 



4 

 . 6 







Dimensions 

 Of the lointer specimen. 



Lin. 





 

 9 

 6 



Length of bill to rictus 

 „ of tarsus 

 ,, of middle toe 



Inch. 

 . 



1 

 . I 



Lin. 

 10 



4 



14 



Length of middle nail 

 ,, of hind toe 

 of its nail . 



Inch. Lin. 

 6 



-R. 



[130.] 9. Tetrao (Centrocercus) urophasianus. (Swainson.) Cock 



of the Plains. 



Genus, Tetrao, Linn. Sub-genus, Centrocercus* (Type 3), Swains. 



Cock of the Plains. Lewis & Clark, Journ., p. 473. 



Tetrao urophasianus. Bonap. Zool. Journ., iii., p. 212. Dougl. Linn. Trans., xvi., p. 133, sp. 1. 



Bonap. Om., pi. 21, f. 1 ; young male ? Wils., Illustr., pi. 

 Pyamis. Kyuse Indians. 



Plate lviii. 



This bird, which was first mentioned by Lewis and Clark, has since become 

 well known to the fur traders that frequent the banks of the Columbia. Several 

 specimens have been sent to England by the agents of the Hudson's Bay 

 Company : a male and female are mounted in their museum ; — and others 

 having come into Mr. Leadbeater's hands, one of them has been figured by the 

 Prince of Musignano. Mr. David Douglas also brought home specimens, from 

 one of which Mr. Wilson's figure was taken. It is to Mr. Douglas that we 

 owe the following account of the manners of the species, the only one hitherto 

 published : — 



" The flight of these birds is slow, unsteady, and affords but little amusement 

 to the sportsman. From the disproportionately small, convex, thin-quilled wing, 

 — so thin, that a vacant space half as broad as a quill appears between each, — 



* Th. xsvrgov, cuspis, et xi^xos, cauda. 



I 



