BIRDS — TETRAONIDAE — BONASA SABINII, 

 List of specimens. 



631 



BONASA SABINII, Baird. 



Oregon Grouse. 



Tetrao sabinii, Douglas, Trans. Linn. Soc. XVI, 1829, 137.— Rich. F. Bor. Am. II, 1831, 343. 

 ? Tetrao umbellus, Rich. P. Bor. Am. II, 1831, 342.— Newberry, Zool. Cal. & Or. Route, Rep. P. R. R. Surv. VI, 

 IV, 1857, 94. 



Sp. Ch. — Similar to B. wmbellus, but much darker. Middle toe longer. Length, about 18 inches ; wing, 7.30 ; tail, 6.70. 

 Hab. — Rocky mountains to Pacific coast of Oregon and "Washington. 



The specimens of ruffed grouse from the Pacific coast differ very greatly in much darker 

 tints of coloration, although the pattern is apparently the same. There is no shade of grey 

 anywhere. The upper parts are dark orange chestnut, mottled with black, the cordate light 

 spots very distinct. The feathers of the breast are strongly tinged with reddish yellow ; those 

 of the sides marked with broad and conspicuous bars of black, instead of the obsolete brown. 

 The under tail coverts are orange chestnut, with indistinct bars of black, and an angular 

 terminal blotch of white. All the light brown blotches and edgings of the eastern variety are 

 here dark brown or black. The jugular band between the ruffles is very conspicuously black. 

 The greatest difference is seen in the middle toe, which is much longer than in umbellus, and 

 even without its claw, exceeding the tarsus, instead of being shorter. 



I am inclined to consider this as a good species of grouse, and distinct from B. umbellus, on 

 account of the difference in the length of the middle toes, although this elongation may some- 

 times be found in B. umbdlus. When Richardson found no difference between his T. umbellus 

 and the T. sabini of Douglas, it is not improbable, judging from the measurements; that he 

 had sabini before him instead of the other species. 



List of specimens. 



Catal. 

 No. 



8424 

 9997 

 19996 

 8087 

 4443 

 4439 

 4441 

 4446 



Sex. 



Locality. 



Simiahmoo, W. T 



Fort Steilacoom, W. T. . - 

 Fort Vancouver, W. T... 



Columbia river, 0. T 



Willamette valley 



Cascade mountains, 0. T. 

 .-. do 



When collected. 



Sept. 16,1857 

 April — , 1856 

 Jan. 13,1854 



Whence obtained. 



A. Campbell 



Dr. Suckley 



Gov. Stevens 



J. Gould 



Lt, Williamson. 

 do 



-do. 

 -do. 



Orig. 

 No. 



349 

 11 



Collected by- 



Dr. Kennerly. 



Dr. Cooper 



D. Douglas 



Dr. Newberry. 

 do 



.do. 

 -do. 



Length. 



18.00 



Stretch 

 of wings. 



23.00 



Callapooya mountains. 



^ Iris brown. 



