36 CHECK-LIST OF NORTH AMERICAN BIRDS. 



south to New Jersey, and casually to Virginia, Bermuda, and the Great Lakes; 

 accidental in Missouri, Colorado, and Wyoming. 



b. Rissa tridactyla pollicdris Ridgway. Pacific Eittiwake. [40a.] 



Rissa tridactyla pollicaris Ridgway, in Water Birds N. A., II, 1884, 202. 

 (St. George Island, Bering Sea.) 



Range. — Coasts of North Pacific, Bering Sea, and adjacent Arctic Ocean. 

 Breeds from Cape Lisburne and Herald Island south to Aleutian and Com- 

 mander islands; winters from Aleutian Islands south to northern Lower 

 California; casual at Point Barrow. 



Rissa brevirdstris (Bruch). Red-legged Eittiwake. [41.] 



Larua bremrostris Bkuch, Journ. fur Orn., 1853, 103. (Northwestern 

 America.) 



Range. — Coasts and islands of Bering Sea; accidental in Yukon. 



Genus LARUS Linnaeus. 



Larus Linn^us, Syst. Nat., ed. 10, I, 1758, 136. Type, by subs, desig., 

 Larus canus Linn^us (Gray, 1855). 



Laras hyperboreus Gunnerus. Glaucous Gull. [42.] 



Liorus hyperboreus Gunnertjs, in Leem, Beskr. Finm. Lapper, 1767, 226 

 (note). (Northern Norway.) 



Range. — Arctic regions. Breeds from northwestern Alaska, Mel- 

 ville Island, and northern Greenland south to Aleutian Islands, north- 

 em Mackenzie, central Ungava, and on Arctic islands of Eastern 

 Hemisphere; winters from the Aleutians and Greenland south to 

 Monterey, California, the Great Lakes, and Long Island, and casually 

 to Bermuda, North Carolina, and Texas; in Europe and Asia south 

 to the Mediterranean, Black, and Caspian seas, and Japan. 



Larus leuc6pterus Faber. Iceland Gull. [43.] 



Larus leucopterus Fabek, Prodromus Isl. Orn., 1822, 91. (Iceland.) 



Range. — Arctic regions. Breeds from Victoria Land (Cambridge 

 Bay) and Boothia Peninsula to central Greenland and east to 



