40 CHECK-LIST OF NORTH AMERICAN BIRDS. 
Larus heérmanni Cassin. Heermann’s Gull. [57.] 
Larus heermanni Cassin, Proce. Acad. Nat. Sci. Phila., VI, 1852, 187. 
(San Diego, California.) 
Rance.— Pacific coast of North America. Breeds in Lower Cali- 
fornia and western Mexico; wanders north to southern British Colum- 
bia; winters from northern California to southern Guatemala. 
Larus atricilla Linnzus. Laughing Gull. [58.] 
Larus atricilla Linnavus, Syst. Nat., ed. 10, I, 1758, 136. (Bahamas.) 
RancE.— Tropical and temperate coasts. Breeds from Maine 
(rarely) and Massachusetts (abundantly but locally) south on the 
Atlantic and Gulf coasts to Texas, the Lesser Antilles and Vene- 
zuela; winters from Georgia and Gulf coast south to western Mexico, 
Chile, and Brazil; casual in Colorado, Nebraska, Wisconsin, Ontario, 
and Iowa. 
Larus franklini RicHarpson. Franklin’s Gull. [59.] 
Larus franklinii Richarpson, Fauna Bor.-Am., II, 1831 (1832), 424, 
pl. 71. (Saskatchewan River.) 
RaneGe.— North and South America. Breeds from southwestern 
Saskatchewan and southwestern Keewatin to South Dakota, Iowa, 
and southern Minnesota; winters from Gulf coast of Louisiana and 
Texas to Peru and Chile; accidental in Utah, Ontario, Ohio, Virginia, 
and the Lesser Antilles. 
Larus philadélphia (Orp). Bonaparte’s Gull. [60.] 
Sterna philadelphia Orv, in GuTHRIE’s Geog., 2d Am. ed., 1815, 319. 
(Near Philadelphia, Pa.) 
Rance.— North America. Breeds from northwestern Alaska and 
northern Mackenzie south to southern British Columbia and southern 
Keewatin; winters from Maine to Florida and on the Gulf coast to 
Texas and Yucatan, and on the Pacific coast from southern British 
Columbia south to Lower California and western Mexico (Jalisco); 
in migration west to Kotzebue Sound and east to Ungava; casual in 
Bermuda and the Bahamas. 
