26 LIFE HISTORIES OF NORTH AMERICAN DIVING BIRDS 



land, northern Europe (south to Denmark and Gottland Island in 

 the Baltic Sea) and throughout Siberia. 



Winter range. In North America mainly within the United States 

 and principally on the seacoast. From central New York (Tioga 

 County) and coast of Maine, south to Florida (Lake Wimlico and 

 Amelia Island). West along the Gulf coast to Louisiana. From 

 southern British Columbia (Okanagan Lake and Vancouver Island) 

 and northwestern Washington (Bellingham Bay) to southern Cal- 

 ifornia (along the coast and casually inland). Has been recorded 

 as wintering in the Pribilof and Aleutian Islands (Unalaska) and 

 southeastern Alaska (Sitka). In the interior winter records are 

 mostly from the region of the Great Lakes; Ohio, northern Indiana, 

 Illinois (Lake Michigan), southern Ontario (Lake Ontario) and 

 Michigan. 



Outside of North America the species winters in central and 

 southern Europe south to the northern coast of Africa and the Azores. 

 In Asia south on the coast of China and Japan to the Tropic of 

 Cancer. 



Spring migration. Northward along the Atlantic slope, during 

 April and early May. South Carolina: Second week in April. Dis- 

 trict of Columbia: Washington, April 17. New Jersey: April 14 to 

 23 (latest May 3). New York: Arriving March 20 to April 10, de- 

 parting middle of May. Connecticut: Long Island Sound, May 3 

 (latest). Massachusetts: May 6 (latest). Maine: Leave late in 

 April. 



Northward along the Pacific coast and through the Rocky Moun- 

 tain region. California : Santa Cruz Island, April. Oregon : Netarts 

 Bay, March 9 to 21. British Columbia: Elk River, April 22. Wy- 

 oming: May 15. Alberta: Lily Lake, May 13; Athabaska Landing, 

 May 1 2 . Athabaska River : Fort McMurray, May 14. Yukon Ter- 

 ritory: Fort Reliance, May 14; Forty Mile, May 20. Southern 

 Alaska: Kuiu Island, April 28 (arriving) ; Prince of Wales Island, 

 May 10-14. Alaska: Lower Yukon at Nulato, last of May. 



Northward through the interior. Kansas: April 15 to 30. Iowa: 

 April 19. Illinois: Chicago, April 12 to 27. Ohio: Cedar Point, 

 March 25 to April 2 1 ; Waverly, April 20 to 28. Michigan: April 12 

 to 23. Minnesota: April 23. 



Fall migration. Southward along both coasts and through the 

 interior. Ungava: Koksoak River, September 15. Maine: Arrive 

 September. Massachusetts: October 1 (earliest). Connecticut: Sep- 

 tember 12 (earliest). New York: Arrive October 10. New Jersey: 

 October to November. Virginia: Dismal Swamp, October 9. South 

 Carolina: October 25 (earliest). Florida: Hillsboro County, Octo- 

 ber 28. Ohio: Waverly, September 17 to October 24; Oberlin, ar- 

 rives October 1 to 15, departs November 25, Iowa: November 11 



