ORDER COLYMBIFORMES. 6 



Range. — Breeds from northern Alaska and the Arctic coasts and islands of 

 Canada and Greenland south to the Commander Islands, western Aleutian 

 Islands, the Queen Charlotte and other northern British Columbia islands, 

 northern Manitoba, southeastern Quebec, and Newfoundland; also through- 

 out Arctic Europe and Asia. Winters from the Aleutian Islands and the coast 

 of British Columbia to northern Lower California, and from the Gulf of St. 

 Lawrence and the Great Lakes to Florida; in Europe south to the Mediterra- 

 nean and in Asia to southern China. Casual in Montana, Missouri, Kansas, 

 Nebraska, Arizona, Iowa, and Idaho; occasional in New Jersey in summer. 



Order COLYMBIFORMES. Grebes. 



Family COLYMBIDAE. Grebes. 



Genus COLYMBUS Linnaeus. 



Colymbus Linnaeus, Syst. Nat., ed. 10, I, 1758, 135. Type, by subs, 

 desig., Colymbus cristatus Linnaeus (Baird, Brewer, and Ridgway, 

 1884). 



Subgenus COLYMBUS Linnaeus. 



Colymbus grisegena holboelli (Reinhardt). Holboell's Grebe. [2.] 



Podiceps Holbollii Reinhardt, Videnskab. Meddelelser, 1853, 76. 

 (Nenortalik i Julianehaabs Distrikt, Gronland.) 



Range. — Breeds from northeastern Siberia, northwestern Alaska, and 

 northern Canada south to northern Washington, North Dakota, and south- 

 western Minnesota. Winters mainly on the Atlantic and Pacific coasts from 

 Maine to North Carolina and from the Pribilof and Aleutian islands (casually), 

 and southern British Columbia to southern California; also from southern 

 Wisconsin, and southern Ontario, southern Colorado, and the Ohio Valley, 

 casually to Georgia, Florida, and Tennessee; and in Asia south to Japan. 

 [An allied race occurs in Europe and western Asia.] 



Subgenus DYTES Kaup. 



Dytes Kaup, Skizz. Entw.-Gesch. Eur. Thierw., 1829, 41. Type, by subs, 

 desig., Dytes cornulus (Gmelin) Kaup = Colymbus auritus Linnaeus 

 (Gray, 1842). 



Colymbus auritus Linnaeus. Homed Grebe. [3.] 



Colymbus auritus Linnaeus, Syst. Nat., ed. 10, I, 1758, 135. (in summis 

 Europae & Americse lacubus = Sweden.) 



