R A S R E S. 



285 



Dr. Pickering notices this species as occurring in Oregon. " It 

 appears to be partial," he says, " to grassy flats along the rivers and 

 other streams, and is sometimes started up in company with Curlews 

 and other waders. In flight, it makes a whirring noise." 



4. Tetrao canadensis, Linnaeus. — The Canada Grouse. 



Tetrao canadensis, LiNN. Syst. Nat. I, p. 274 (1766). 



Tetrao FranMinii, DouGL. Trans. Linn. Soc. London, XVI, p. 139 (1828). 



Buff. PL Enl. 131, 132 ; Faun. Bor. Am. Birds, Plate LXI, LXII ; 

 Aud. B. of Am. Plate CLXXVI ; Oct. ed. V, Plate CCXCIV. 



Dr. Pickering also mentions a bird under this name, but with a 

 question, indicating doubt as to the species. It inhabits, he states, 

 spruce trees, in the more mountainous parts of Oregon. 



We find no specimens in the collection. 



5. Tetrao urophasianus, Bonaparte. — The Cock of the Plains. 



Tetrao uropJiasianus, BoNAP. Zool. Jour. Ill, p. 213 (1828). 



Bonap. Am. Orn. Ill, Plate XXI; Faun. Bor. Am. Birds, Plate 

 LVIII; Aud. B. of Am. Plate CCCLXXI ; Oct. ed. V, Plate 

 CCXCVII. 



This species, the largest of the American Birds of this group, is but 

 rarely mentioned by the naturalists of the Expedition. Its proper 

 locality is perhaps more the interior of the country than was visited. 



Mr. Peale observes : 



" The plains on the Wallawalla River appear to be the western 

 limit of this species, and although over much country south, which 

 seemed to us to be favorable to it, we did not see a ' Cock of the 

 Plains' on our way into California. Our specimens were obtained at 

 Wallawalla." 



Excellent specimens of this fine species are in the collection of the 

 Expedition, in good preservation. This bird is now comparatively 



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