138 CHECK-LIST OF NORTH AMERICAN BIRDS. 



established on Salton Sea, southern California. Casual on the Florida coast 

 and north to Maine, New Brunswick, Ohio, and Illinois. Winters from Texas 

 and Louisiana to southern Guatemala and western Panama, and from Brazil 

 to Patagonia. [Closely allied races occur in Europe, Asia and Australia.] 



Genus STERNA Linnaeus. 



Sterna Linnaeus. Syst. Nat., ed. 10, I, 1758, 137. Type, by subs, desig., 

 Sterna hirundo Linnaeus (Gray, 1840). 



Subgenus STERNA Linnaeus. 



• Sterna trudeaui Audubon. Trudeau's Tern. [68.] 



Sterna Trudeaui Audubon, Birds Amer. (folio), IV, pi. 409, fig. 2, 1838 

 (Orn. Biog., V, 1839, 125). (Great Egg Harbor, New Jersey.) 



Range. — Breeds on the coasts of Argentina and Uruguay, and on St. Am- 

 brose Island off the coast of Chile. Winter range unkno^v^l ; in migration occurs 

 from Brazil to the Straits of Magellan. Accidental in New Jersey. 



Sterna forsteri Nuttall. Forster's Tern. [69.] 



Sterna forsteri Nuttall, Manual Orn. U. S. and Canada, II, 1834, 274 

 (note). New name for Sterna hirundo Richardson, Fauna Bor.- 

 Amer. p. 412 (nee Linnaeus), (banks of the Saskatchewan between 

 Cumberland House and Lake Winnipeg, ex Richardson.) 



Range. — Breeds in the interior of California, southern Oregon, Washington, 

 Utah, and Nevada, and from southeastern Manitoba south to northern Colo- 

 rado, northern Nebraska, Minnesota, northeastern Illinois, and southern 

 Ontario (formerly); also on the coasts of Texas, Louisiana, and Virginia. 

 Winters from central California, the Gulf of Mexico, and South Carolina to 

 southern Guatemala; in migration occurs irregularly on the Atlantic coast 

 as far north as Massachusetts and casually in British Columbia. Accidental 

 in Brazil. 



Sterna hirundo hirundo Linnaeus. Common Tern. [70.] 



Sterna Hirundo Linnaeus, Syst. Nat., ed. 10, I, 1758, 137. (in Europa 

 = Sweden.) 



Range. — Nearly cosmopolitan. Breeds from Great Slave Lake, northern 

 Manitoba, central Ontario, and Gulf of St. Lawrence south to southern Alberta, 

 Saskatchewan, noi'thern North Dakota, southern Wisconsin, northern Ohio, 

 northwestern Pennsylvania, and North Carolina. Breeds also in the Bahamas, 

 on the coast of Venezuela, the Florida Keys, Dutch West Indies, and the Gulf 

 coast of Alabama and Texas; also in Europe, western Asia and northern 

 Africa, the Azores, Canaries, and Madeira. Winters in Florida, on both coasts 

 of South America, and western Mexico south to the Straits of Magellan; also 



