BIRDS OF NORTH AND MIDDLE AMERICA 89 



Juvenal (sexes alike). — Like that of D. o. richardsonii; possibly 

 averaging paler but not certainly distinguishable from it. 



Dozvny young. — None seen; probably like that of D. o. richardsonii. 



Adult male.— Wing 212-244 (233.8); tail 142-180 (166.4); exposed 

 culmen 18.6-23.8 (20.7) ; tarsus 41.2-48.3 (44.5) ; middle toe without 

 claw 40-47.5 (42.9 mm.).^^ 



Adult female.— Wing 196^221 (208.7) ; tail 125-139 (131.8) ; exposed 

 culmen 18-20.5 (19.5) ; tarsus 38.6-43.8 (40.9) ; middle toe without claw 

 35.6-42 (39.1 mm.).^^ 



Range. — Resident in the mountains of eastern Washington (Mazama, 

 Winthrop, Twisp, Bly, Loomis, Walla Walla, Fort Benton, Tunk Moun- 

 tain, etc.), and south to the northeastern quarter of Oregon (Wallowa, 

 Baker, Union Counties ; northern Malheur and Harney Counties ; eastern 

 Crook, Grant, and Wheeler Counties ; southern Morrow County, and 

 southern and eastern Unatilla County ),^^ southeast to central Nevada 

 (Toyabe, Toquima, and Monitor Mountains). 



Type locality. — Cornucopia, Baker County, Oreg. 



Tetrao richardsonii (not Douglas) Baird, in Cooper, Orn. California, Land Birds, 

 1870, 528 (crit.), part. 



Dendragapus ohscurns richardsonii American Ornithologists' Union, Check-list, 

 1886, No. 297b ; ed. 2, 1895, No. 297b, part.— Bendire, Life Hist. North Amer. 

 Birds, i, 1892, 50, part.— Woodcock, Oregon Agr. Exp. Stat. Bull. 68, 1902, 26 

 (Camp Harney and Sparta, Oreg.). 



D[endragapus] obscurus richardsomi Ridgway, Man. North Amer. Birds, 1887, 196, 

 part. 



[Dcndragapus] richardsoni Sharpe, Hand-list, i, 1899, 20, part. 



Dcndragapus obscurus richardsoni American Ornithologists' Union, Check-list, 

 ed. 3, 1910, 138, part; ed. 4, 1931, 79, part.— Dice, Auk, xxxv, 1918, 44 (Blue 

 Mountains, Butte Creek, and near Twin Buttes Ranger Station, se. Washing- 

 ton). — Gabrielson, Auk, xli, 1924, 555 (near Memaloose Ranger Station, Wal- 

 lowa County, Oreg.). — Gabrielson and Jewett, Birds Oregon, 1940, 207 (Ore- 

 gon; descr. ; distr. ; habits). 



[Tetrao obscurus] var. richardsonii Coues, Key North Amer. Birds, 1872, 233, part. 



Tetrao obscurus . . . var. richardsonii Coues, Check List North Amer. Birds, 

 1874, No. 381a, part. 



Canace obscurus, var. richardsoni Baird, Brewer, and Ridgway, Hist. North Amer. 

 Birds, iii, 1874, 427, part. 



Canace obscura richardsonii Ridgway, Proc. U. S. Nat. Mus., iii, 1880, 196, part. 



Canace obscura richardsoni Ridgway, Nom. North Amer. Birds, 1881, No. 471b, 

 part.— Coues, Check List North Amer. Birds, ed. 2, 1882, No. 558, part. 



C[anace] o[bscura] richardsoni Coues, Key North Amer. Birds, ed. 2, 1884, 579, 

 part. 



Canace ricJtardsoni Baird, Brewer, and Ridgway, Hist. North Amer. Birds, iii, 1874, 

 pi. 59, fig. 4, part. 



"' Sixteen specimens from Washington and Oregon. 

 "^ Thirteen specimens from Washington and Oregon. 



®' Birds from northeastern Washington are intermediate between D. o. richardsonii 

 and D. a. pallidus. 



