BIRDS OF NOETH AND MIDDLE AMERICA. 655 



Pacific coast of North America, from Guerrero, Mexico, to Van- 

 couver Island, British Columbia; breeding on islands in Gulf of 

 Cahfornia (Isla Raza; Ildefonso Island) and Marictas Islands off 

 Jalisco ; also said to breed at Magdalena Bay, Lower California, Tres 

 Marias Islands, Tepic, and Mazatlan, Sinaloa, but these records doubt- 

 ful;'^ occurring but not breeding along coast of Cahfornia, Oregon, 

 Washington, and Vancouver Island (Fort Rupert, Oct.; Esquimault; 

 Wilham Head) and southward along coast of Lower Cahfornia, 

 Sonora, Sinaloa (MazatUn, breeding?), Tepic (Isabella Island ; Tres 

 Marias Islands, breeding?), Jahsco (Las Marietas Islands, breeding), 

 Cohma and Guerrero (Acapulco Bay, April) . 



Lams heermanni Cassin, Proc. Acad. Nat. Sci. Phila., vi, 1852, 187 (San Diego, 

 California); Illustr. Birds Calif., Tex., etc., 1856, 28, pi. 5. — Heermann, 

 Rep. Pacific R. R. Surv., x, 1859, pt. vi, p. 74.— Salvin, Ibis, 1865, 190 

 (Cliiapam, Guatemala); 1866, 198 (Chiapam, Guatemala). — Sclater and 

 Salvin, Proc. Zool. Soc. Lond., 1871, 574 (monogr.). — Saunders, Proc. 

 Zool. Soc. Lond., 1878, 182 (monogr.); Journ. Linn. Soc, Zool., xiv, 1878, 396 

 (range); Cat. Birds Brit. Mus., xxv, 1896, 225 (San Jose and Chiapam, Guate- 

 mala, Jan.; Salt Spring Island, Fort Rupert, and Esquimault, Brit. Colum- 

 bia, etc.). — Deane, Bull. Nutt. Orn. Club, iv, 1879, 30 (descr. albinistic 

 spec.).— RiDG way, Proc. U. S. Nat. Mus., iii, 1880 (Cat. N. Am. Birds), 207; 

 Nom. N. Am. Birds, 1881, no. 672.— Coues, Check List, 2d ed., 1882, no. 

 781. — Baird, Brewer, and Ridgway, Water Birds N. Am., ii, 1884, 252. — 

 American Ornithologists' Union, Check List, 1886, and 2d ed., 1895, 

 no. 57; 3d ed., 1910, p. 40.— Evermann, Auk, iii, 1886, 88 (Ventura Co., 

 California). — Blake, Auk, iv, 1887, 329 (Santa Cruz Island, California).— 

 Nelson, North Am. Fauna, no. 14, 1899, 23 (Isabella Island, Tepic, April 

 23; habits, etc.). — Brewster, Bull. Mus. Comp. Zool., xli, no. 1, 1902, 21 

 (^ape San Lucas, La Paz, San Jose del Cabo, and Carmen Island, s. Lower 

 (.California, Sept. 6 to March 13).— Willett, Condor, xx, 1918, 122, fig. 1 

 (specimens with white primary coverts). — Salvin and Godman, Biol. Centr.- 

 Amer., Aves, iii, 1903, 422 (Mazatlan, Sinaloa; Isabella Islands; Tres Marias 

 Islands; Chiapam and San Jose, Guatemala). — Bowles, Auk, xxiii, 1906, 

 139 (Tacomp. Waphington, common summer and fall, but not breeding). — 

 Geinnell (J.). Pacific Coast A\rif., no. 11, 1915, 22 (coast California, n. to 

 San Francisco Bay, not breeding). — Cooke, Bull. 292, U. S. Dept. Agric. 

 (Biol. Survey, 1915, 49, fig. 24 (range and migrations). 



[Larus] heermanni Gray, Hand-Ust, iii, 1871,. 116, no. 11012, part (California). — 

 Sclater and Salvin, Nom. Av. Neotr., 1873, 148. — Sharpe, Hand-Ust, i, 

 1899, 140. — Forbes and Robinson, Bull. Liverp. Mus., ii, no. 2, 1899, 57 

 (Mazatlan). 



L[arus] heermanni Coues, Key N. Am. Birds, 2d ed., 1884, 747. — Ridgway, 

 Man. N. Am. Birds, 1887, 34. 



[Addarus] heermanni Bruch, Journ. fiir Orn., 1853, 107; 1855, 279 (monogr.). 



[Leucophaeus] heermanni Bonaparte, Naumannia, 1854, 211. 



Leucophieus heervianni Bonaparte, Rev. et Mag. de Zool., 1855, 21. 



[Blasipus] heermanni Bonaparte, Compt. Rend., xlii, 1856, 770, Consp. Av., ii, 

 1857, 211. 



o See Cooke, Distribution and Migration of North American Gulls and their Allies, 

 1915, 49, 50. 



