BIEDS OF NORTH AXD MIDDLE AMERICA. 611 



Island; San Pedro Martir Island; Los Coronados Islands) northward 

 to British Columbia (Similkameen Valle}') ; migrating southward to 

 Isabella and Tres Marias islands, Tepie, casually to Socorro Island, 

 KeviUegigedo group (specimen found dead May 3, 1897), northward 

 to Vancouver Island; accidental in Colorado (Loveland, Sept. 30, 

 1889). 



Larus occidentalis Audubon, Orn. Biog., v, 1839, 320 (Cape Disappointment, 

 Washington); Synopsis, 1839, 328; Birds Am., 8vo ecL, vii, 1844, IGl.— 

 Lawrence, in Baird, Rep. Pacific R. R. Surv., ix, 1858, 845.— Baird, Cat. 

 N. Am. Birds, 1859, no. 662.— Cas.sin, Orn. U. S. Expl. Exped. (Wilkes), 



1858, 247 (California). — Heermann, Rep. Pacific R. R. Surv., x, pt. iv., 



1859, 73 (coast California; habits). — Cooper and Suckley, Rep. Pacific 

 R. R. Surv., xii, pt. ii, 1860, 271 (Shoalwater Bay, 'Straits of Fuca, etc., 

 Washington; Lower California; habits). — Coues, Proc. Ac. Nat. Sci. Phila., 

 1862, 296 (monogr.); Ibis, 1866, 271 (San Pedro, California); Check List, 

 2d ed., 1882, no. 774.— Schlegel, Mus. Pays-Bas, vi, no. 23 (Lari), 1863, 

 15. — Elliot, New and Unfig. N. Am. Birds, pt. 7, 1867 (vol. ii), pi. 52, upper 

 fig., and text. — Ridgway, Proc. U. S. Nat. Mus., iii, 1880 (Cat. N. Am. 

 Birds), 207; Nom. N. Am. Birds, 1881, no. 664.— Saunders, Proc. Zool. Soc. 

 Lond., 1878, 172 (monogr.); Cat. Birds Brit. Mus., xxv, 1896, 257.— Belding, 

 Proc. V. S. Nat. Mus., v, 1883, 545 (Cape district, Lower California). — Baird, 

 Brewer, and Ridgway, Water Birds N. Am., ii, 1884, 230. — Henshaw, 

 Auk, ii, 1885, 232 (California coast). — American Ornithologists' Union, 

 Check List, 1886, and 2d ed., 1895, no. 49; 3d ed., 1910, p. 38.— Blake, Auk, 

 iv, 1887, 329 (Santa Cruz Island, California, breeding).— Bryant (W. E.), 

 Proc. Calif. Ac. Sci., 2d ser., i, 1888, 37 (Farallon Islands, breeding; habits; 

 descr. nest and eggs).— Goss, Auk, v, 1888, 240 (San Pedro Martir Island, 

 Lower California, breeding). — Jeffries, Auk, vi, 1889, 222, in text (Santa 

 Barbara, California). — Lawrence (R. H.), Auk, ix, 1892, 41 (Grays Harbor, 

 Washington, winter resident). — Ctrinnell (J.) Pub. 1, Pasadena Acad. Sci., 

 1897, 23 (Santa Barbara Islands, breeding); Pacific Coast Avif., no. 11, 1915, 

 21 (breeding on Farallons, Santa Barbara Islands, etc.). — ^Cooke, Birds Col., 

 1897, 50 (Loveland, Colorado, 1 spec, Sept. 30, 1889); Bull. 292, U. S. Dept. 

 Agric. (Biol. Surv.), 1915, 34, figs. 15, 16 (range and migrations). — Anthony, 

 Auk, XV, 18.98, 315 (Socorro Island, 1 spec, May 3, 1897). — Brewster, 

 Bull. Mus. Comp. Zool., xli, no. 1, 1902, 20 (La Paz Bay, etc. Lower Cali- 

 fornia, in winter; breeding on rocky islet near Carmen Island).- — Gkinnell and 

 Daggett, Auk, xx, 1903, 30 (Los Coronados Islands, Lower California, breed- 

 ing). — Ray, Auk, xxi, 1904, 434, pi. 26 (Farallon Islands; habits, etc.). — 

 Kermode, Pro\'incial Mus. Victoria, 1909, 24 (coast Brit. Columbia, resident; 

 Chilliwack; breeding in Similkameen Valley). 



L[arus] occidentalis Gray, Gen. Birds, iii, 1846, 654. — Blasius, Journ. fiir Orn., 



1865, 379 (crit.).— Coues, Key N. Am. Birds, 2d ed., 1884, 744.— Ridgway, 



Man. N. Am. Birds, 1887, 28. 

 [Larus] occidentalis Sharpe, Hand-list, i, 1899, 141.— Forbes and Robinson, 



Bull. Liverp. Mus., ii, no. 2, 1899, 58. 

 [Larus (Glaucus)] occidentalis Bruch, Journ. fiir Orn., 1853, 101. 

 [Larus (Laroides)] occidentalis Bruch, Journ. fiir Orn., 1855-, 282. — Boucard, 



Liste Ois. r^col. Guat., 1878, 18. 

 [Laroides] occidentalis Bonaparte, Compt. Rend., xlii, 1856, 770; Consp. Av., 



ii, 1857, 219. 



