BIRDS OF NORTH AND MIDDLE AMERICA. 273 



Sound, Alaska).— Bean, Proc. U. S. Nat. Mus., v, 1882, 159 (Sitka, Georges 

 I., and Port Althorp, Alaska).— Coues, Check List, 2d ed., 1882, 342.— 

 A.MERicAN OknithologisTvS' Uxion, Chcc'k List, 1886, no. 489. — Nelson, Nat. 

 Hist. Coll. Alaska, 1887, 168 (Sitka; Ceorges I.).— Belding, Land P.irds 

 Pacific Distr., 1890, 115 (British Columbia; notes). — Chapman, Bull. Am. 

 Mus. N. H., iii, 1890, 142 (Ashcroft, Westminster, INIonnt Lehman, and Van- 

 couver I., British Columbia; Cape Disappointment and Kalama, Washing- 

 ton; crit.; measurements). — Fannin, Check List Birds Brit. Col., 1891, 33 

 (coast). — Lawrence (R. H.), Auk, ix, 1892, 45 (Grays Harbor, Washing- 

 ton). — Rhoads, Auk, X, 1893, 18-21 (crit.; measurements); Proc. Ac. Nat. 

 Sci. Phila., 1893, 46, part (coast British Columbia, crit.). — Bendire, Life 

 Hist. N. Am. Birds, ii, 1895, 414, pi. 4, fig. 15 (egg). — Grinnell (J.), Auk, 

 XV, 1898, 128 (Sitka).— (?) Kobhe, Auk, xvii, 1900, 354 (Cape Disappoint- 

 ment, Washington; abundant resid. ; habits; food). — Bowles, Condor, ii, 

 1900, 84 (near Tacoma, Washington; habits; descr. nest and eggs). — Grin- 

 nell, Condor, iii, 1901, 23 (Prince William Sound, Alaska). — Rathbun 

 (S. F. ), Auk, xix, 1902, 136 (Seattle, Washington; common resid.). — Bailey 

 (Florence M.), Handb. Birds W. U. S., 1902, 282. 



[Coitus] caurlnus Gray, Hand-list, ii, 1870, 13, no. 6214. 



Clorvus] canrhms Coues, Key N. Am. Birds, 2d ed., 1884, 417. — Ridgway, ]\Ian. 

 N. Am. Birds, 1887, 363. 



[Co7'vus americanus.l . Var. caHrinns Coues, Key, 1872, 163. — Hensiiaw, Orn. 

 Rep. Wheeler's Surv., 1879, 305 (crit.). 



Conms americanus . . . var. caurlnus Coues, Check List, 1873, no. 228?j. 



[Corvus americanus.'] b. ? caurinus Coues, Birds N. W., 1874, 206, part (syn- 

 onymy). 



Corone caurina Sharpe, Cat. Birds Brit. Mus., iii, 1877, 36 (Vancouver I.). 



Conms americanus caurinus Rhoads, Auk, x, Jan., 1893, 31, part (includes C. a. 

 hesperis); Proc. Ac. Nat. Sci. Phil., 1893, 63, part (do.). 



Corms fnigirorus caurinus Ridgway, Proc. U. S. Nat. Mus., iii, Aug. 24,1880, 

 184; Nom. N. Am. Birds, 1881, no. 2326. 



CORVUS OSSIFRAGUS Wilson. 

 FISH CROW. 



Similar to ('. amerleantis^ Imt smaller than the smallest race of the 

 latter {('. a. cfnirinus)^ with relatively smaller l)ill: plumag-e much 

 more glos.sy black, the gloss more bluish above, more greenish beneath. 



Adults [sexes alike). — Entire plumage glossy black, the upper parts 

 glossed with bluish violet (more purplish violet on lesser wing-coverts 

 and secondaries), the under parts glossed with bluish green or green- 

 ish ])hie; bill. Icos. juid feet black; iris brown. 



Adult y/^r/A'.— Length (skins), 3T9-39-1: (382.5); wing, 264.5-300 (27S): 

 tail, 148-170.5 (158.5); expo.sed culmen, 40..5-l:5 (43); depth of ])ill at 

 nostrils, 14.5-15.5 (15); tarsus, 45.5-50 (48); middle toe. 33.5-40 

 (35. 5). « 



Adidt f,)u(d,'.—'L(^m^{\\ (skins), 356-1:06.5 (373); wing, 264.5-282.5 

 (271.5); tail, 137.5-165 (152); exposed culmen, 39-42 (40.5); depth of 



" Nine specimens. 

 10384— VOL 3—03 18 



