744 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Central United States, from Minnesota, South Dakota, Nebraska, 

 and Kansas to Nevada, southeastern Oregon, Wyoming, and Mon- 

 tana, north to central Alberta; northwestern Iowa in winter. 



Bubo virginiana (not Strix virginiana Gmelin) Cassin, Illustr. Birds Calif., 

 Tex., etc., 1854, 177, part; in Baird, Rep. Pacific R. R. Surv., ix, 1858,49, 

 part (Ft. Union; Medicine Bow Creek, Wyoming). — Baird, Cat. N. Am. 

 Birds, 1859, no. 48, part.— Cooper, Orn. Calif., 1870, 418, part. 



[Bubo] virginianus Gray, Hand-list, i, 1869, 43, no. 442, part. — Coues, Key N. 

 Am. Birds, 1872, 202, part. 



[Bubo virginianus.] Var. arcticus (not Bubo arcticus Swainson) Coues, Key N. 

 Am. Birds, 1872, 202, in text, part. 



Bubo virginianus . . . var. arcticus Coues, Check List, 1873, no. 317a, part. — 

 RiDGWAY, Bull. Essex Inst., v, 1873, 185 (Colorado). 



[Bubo virginianus] c. arcticus Coues, Birds Northwest, 1874, 301, part (in syn- 

 onymy). 



Bubo virginianus, var. arcticus Ridgway, in Baird, Brewer, and Ridgway, Hist. 

 N. Am. Birds, iii, 1874, 60, 64, part.— Henshaw, Ann. Lye. N. Y., xi, 1874, 

 9 (Utah). 



Bubo virginianus arcticus Ridgway, Bull. Essex Inst., vii, Jan., 1875, 13 (Carson, 

 Nevada).— Coues, Check List, 2d ed., 1882, no. 463, part. 



B[ubo] v[irginianus] arcticus Coues, Key N. Am. Birds, 2d ed., 1884, 504, part. 



Bubo virginianus, ^. subarcticus (not Bubo subarcticus Hoy) Ridgway, Field and 

 Forest, ii, June, 1877, 209 (Colorado). 



[Bubo virginianus] /?. subarcticus Ridgway, Orn. Fortieth Parallel, 1877, 572 

 (Carson, Nevada, breeding; City of Rocks, e. Idaho). 



Bubo virginianus subarcticus Ridgway, Proc. U. S. Nat. Mus., iii, 1880, 191, part; 

 Nom. N. Am. Birds, 1881, no. 405a, part. — American Ornithologists' 

 Union, ChecR List, 1886 (and 2d ed., 1895), no. 375a, part. — Beckham, Auk, 

 ii, 1885, 143 (Pueblo, Colorado).— Goss, Auk, iii, 1886, 114 (Rawlins Co., 

 Kansas, Oct. 29, 1885).— Bendire, Life Hist. N. Am. Bii-ds, (i), 1892, 383, 

 part.— Cooke, Birds Col., 1897, 79 (resident). 



B[ubo] virginianus subarcticus Ridgway, Man. N. Am. Birds, 1887, 263, part. 



Bubo virginianus occidentalis Stone, Auk, xiii, April, 1896, 155 (Mitchell Co., 

 Iowa, winter spec; coll. Ac. Nat. Sci. Phila.).— American Ornithologists' 

 Union Committee, Auk, xiv, 1897, 132 (crit.; not admitted to Check List). 



B[ubo] virginianus occidentalis Stone, Auk, xiii, 1896, 156 (diagnosis). 



Asio magellanicus occidentalis Oberholser, Proc. U. S. Nat. Mus., xxvii, Jan. 22, 

 1904, 191 (monogr.). 



Bubo virginianus pallescens (not of Stone) Cooke, Bull. 44, Col. Agric. Exp. Sta., 

 1898, 161 (Colorado).— American Ornithologists' Union Committee, Auk, 

 xviii, 1901, 300, part; Check List, 3rd ed., 1910, 175, part. — Larsen, Wilson 

 Bull., no. 60, 1907, 114 (Lyman Co., South Dakota). — Cameron, Auk, xxiv, 



1907, 268 (Custer Co., Montana, reeident; habits). — Rockwell, Condor, x, 



1908, 14-17 (Colorado; nesting habits, etc.). — Visher, Auk, xxvi, 1909, 148 

 (Behrens, w. South Dakota); xxviii, 1911, 11 (Harding Co., South Dakota, 

 resident). — Stansill, Auk, xxvi, 1909, 394 (centr. Alberta). — Warren 

 (E. R.), Auk, xxvii, 1910, 146 (Chaffee Co., Colorado); Condor, xiii, 1911, 

 153, fig. 42 (Delta Co., Colorado; habits, etc.).— Brooks and Cobb, Auk, 

 xxviii, 1911, 468 (near Birch Lake, e. Alberta, Oct., Nov.). — Saunders, ^ 

 Condor, xiv, 1912, 26 (Powell Co., Montana). 



[Bubo] pallescens Sharpe, Hand-list, i, 1899, 282, part. 



Asio v[irginianvs] pallescens Stone, Auk, xx, July, 1903, 275, part. 



