BIEDS OF N-ORTH AND MIDDLE AMERICA. 743 



resident).— Cooper, Orn. Calif., 1870, 418, part.— Salvin and Godman, 

 Biol. Centr.-Am., Aves, iii, 1897, 12, part (Hermosilla, Sonora; San Diego' 

 Chihuahua; Ciudad Durango, Durango.) 



[Bubo] virginianus Gray, Hand-list, i, 1869, 43, no. 442, part.— Sclater and 

 Salvin, Nom. Av. Neotr., 1873, 116, part.— Coues, Key N. Am. Birds, 1872, 

 202, part. 



[Bubo virginianus.] Var. arcticus Coues, Key N. Am. Birds, 1872, 202, in text 

 part. 



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



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

 onymy). 



Bubo virginianus, var. arcticus (not Bubo arcticus Swainson) Ridgway, in Baird, 

 Brewer, and Ridgway, Hist. N. Am. Birds, iii, 1874, 60, 64, part. 



Bubo virginianus arcticus Coues, Check List, 2d ed., 1882, no. 463, part. — (?)Bibt- 

 WELL, Auk, xviii, 1901, 113 (Bernalillo, New Mexico, Nov. 18, 1900). 



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



Bubo virginianus subarcticus (not Bubo subarcticus Hoy) Ridgway, Proc. U. S. 

 Nat. Mus., iii, 1880, 191, part; Nom. N. Am. Birds, 1881, no. 405^, part.— 

 American Ornithologists' Union, Check List, 1886 (and 2d ed., 1895), no. 

 375a, part. — Scott, Auk, iii, 1886, 424 (Pinal Co., Arizona, resident). — 

 Lloyd, Auk, iv, 1887, 190 (Tom Green and Concho counties, w. Texas, resi- 

 dent). — Allen, Bull. Am. Mus. N. H., v, 1893, 34 (San Diego, n. Chihuahua, 

 Feb.).— (?) Anthony, Zoe, iv, 1893, 235 (San Pedro Martir Mts. and wooded 

 coast valleys, n. Lower California). 



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



Bubo virginianus pallescens Stone, Am. Nat., xxxi, no. 363, March 1, 1897, 237 

 (Watson Ranch, 18 miles s. w. of San Antonio, Texas; coll. U. S. Nat. ^Mus.); 

 Proc. Ac. Nat. Sci. Phila., 1905, 681 (Hardy R., Colorado delta. Lower Cali- 

 fornia). — Allen, Auk, xvi, 1899, 341 (reprint of orig. descr.). — Carroll, 

 Auk, xvii, 1900, 342 (Refugio Co., Texas, resident). — American Ornitholo- 

 gists' Union Committee, Auk, xviii, 1901, 300, part; Check List, 3rd ed., 

 1910, 175, part. — Swarth, Pacific Coast Avifauna, no. 4, 1904, 9 (Huachuca 

 Mts., Arizona). — Hunn, Auk, xxiii, 1906, 421 (Silver City, New Mexico, 

 resident). — Lacey, Auk, xxviii, 1911, 208 (Kerrville, Texas, resident). 



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



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



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

 1904, 182 (monogr.). 



BUBO VIRGINIANUS OCCIDENTALIS Stone. 



WESTERN HORNED OWL. 



Much paler than B. v. virginianus, with grayish and buffy predom- 

 inating on upper parts, the under parts more extensively white, with 

 black bars narrower; legs and toes buffy to nearly white, usually 

 immaculate or nearly so ; size larger. 



Adult male.— Wing, 333-365 (349.6); tail, 200-225 (212.8); cul- 

 men (from cere), 26-28 (27.1).'* 



Adultfe]male.— Wing, 360-390 {37Q.1); tail, 220-240 (230.5); cul- 

 men (from cere), 28-33 (30.2).^ 



o Ten specimens. * Nine specimens. 



