270 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



C[oiTus] americanus floridanus Ridgway, Man. N. Am. Birds, 1887, 362. 



Corone floridana Sharpe, Cat. Birds Brit. Mus., iii, 1877, 35, footnote. 



Corvus nniericanus (not of Audubon) Allen, Bull. ISIus. Comp. Zool., ii, 1871, 



297, part, excl. syn. part (e. Florida) .—Maynard, Birds E. N. Am., 1881, 



155, part (Florida). 

 C[orvus'] a[mericanus'] pascuus Coues, Auk, xvi, Jan., 1879, 84, in text (in lieu 



of Corvus floridanus, preoccupied). 

 Corvus americanus pascuus American Ornithologists' Union Committee, Auk, 



x^d, 1899, 112. 



COKVUS AMERICANUS HESPERIS Ridgway. 

 WESTERN CROW. 



Similar to O. a. americanus^ but decidedly smaller, with bill rela- 

 tively smaller and more slender. 



Adult male.— h&ngth (skins), 387.5-444.5 (412.5); wing, 282-325 

 (302.5); tail, 150-190 (171); exposed culmen, 45.5-50.5 (47.5); depth 

 of bill at nostrils, 15-17.5 (16.5); tarsus, 64,5-58.5 (57.5): middle toe, 

 33-38 (35. 5). « 



Adult female.— Length (skins), 394-426 (408.5); wing, 278-300 (295); 

 tail, 160.5-183 (169.5); exposed culmen, 43-48 (45.5); depth of bill at 

 nostrils, 15-16.5 (16); tarsus, 53-59 (55.5); middle toe, 30. .5-37. 5 (34).^' 



Western North America, from Rocky Mountains (from eastern 

 portion of arid region?) to Pacific coast, except coast district from 

 Straits of Fuca and Piiget Sound northward; north, in the interior, 

 to British Columbia (Fort St. James); south to southwestern Texas, 

 New Mexico, and southern Arizona, but not recorded as breeding at 

 extreme southern localities. 



Comis ossifragns (not of Wilson) Gambel, Journ. Ac. Nat. Sci. Phila., 2d ser., i, 

 1847, 47 (coast California); Proc. Ac. Nat. Sci. Phila., 1847, 203 (do.).— 

 WooDHOusE, Sitgreaves' Expl. Zuni and Col. R., 1853, 78, part (Texas?, New 

 Mexico; California).— Newberry, Rep. Pacific R. R. Surv., x, pt. iv, 1857, 

 83 (Willamette and Columbia rivers; coast Oregon and California). — (??) 

 Hatch, Birds Minnesota, 1892, 270. '■ 



Corvus americanus (not of Audubon) Maximilian, Reis. in Nord-Amerika, i, 

 1839, 140 (upper Missouri R.)— Gambel, Journ. Ac. Nat. Sci. Phila., 2d ser., 

 i, 1847,47, (California and "interior").— McC all, Proc. Ac. Nat. Sci. Phila., 

 1851, 214 (New Mexico, Texas, etc.).— Woodhouse, Sitgreaves' Expl. Zufii 

 and Col. R., 1853, 78, part (New Mexico, etc. ).— Newberry, Rep. Pacific R. R. 

 Surv., X, pt. iv, 1857, 82 (California; Des Chutes R., Oregon).— Baird, Rep. 

 Pacific R. R. Surv., ix, 1858, 566, part (Tulare Valley and Presidio, Califor- 

 nia; Fort Vancouver, Washington); Cat. N. Am. Birds, 1859, no. 426, part.— 

 Henry, Proc. Ac. Nat. Sci. Phila., 1859, 108 (New Mexico).— Heermann, 

 Rep. Pacific R. R. Surv., x, pt. vi, 1859, 54 (California).— Cooper and Suck- 

 leV, Rep. Pacific R. R. Surv., xii, pt. ii, 1860, 211 (Washington, chiefly e. of 



« Thirteen specimens. 

 ^ Ten specimens. 



cA flock of "not less than a hundred and fifty" said to have been seen near 

 Minneapolis. Sept. 21, 1869. 



