LIFE HISTORIES OF NORTH AMERICAN DIVING BIRDS. 19 
southern Labrador, southwestern New Brunswick (St. Croix River 
and St. Andrews), probably parts of Quebec and Ontario, central 
western Minnesota (Grant County) and North Dakota (Turtle 
Mountains and Sweetwater Lake). West to northwestern Montana 
(Swan Lake), central northern Washington (Okanagan and Chelan 
Counties) and northwestern Alaska (Selawik Lake, coast of Nor- 
ton Sound and Yukon River). North to northeastern Siberia 
(Saghalin Island and Marcova and Gichiga, Anadyr District), 
Yukon Territory (Forty Mile) and northern Mackenzie (Fort 
Anderson, Nahanni River, and Peel River). 
Occasional in summer south of its breeding range. New Jersey 
(Englewood, June), New Hampshire (Kingston and Newton, birds 
seen from May 15 to August 5, with young July 2 to August 1) and 
Washington (Bellingham Bay). Maine breeding records are con- 
sidered erroneous and Labrador nestings are open to doubt. 
Winter range.—Mainly on the Atlantic and Pacific coasts. From 
eastern Maine (Washington County) and west central New York 
(Cayuga Lake) south to North Carolina; casually to Georgia (St. 
Marys) and Tennessee (Reelfoot Lake). From southern British 
Columbia (Okanagan Lake and Vancouver Island, Victoria) and 
western Washington (Puget Sound region) south to southern Cali- 
fornia (Santa Barbara). Also on the Great Lakes: Lake Ontario 
(Toronto), Lake Erie (Near Ashtabula, Ohio), Niagara Falls and 
Lake Michigan (near Chicago, Illinois). Wintering records from 
the interior are few and unsatisfactory. Recorded in winter from 
the Pribilof Islands (St. Paul), Aleutian Islands (Unalaska), Ko- 
diak Island, and Japan. 
Spring migration—Along the Atlantic slope the birds start 
northward in April. Pennsylvania: Warren, April 18. New York: 
April 21 to May 30. Connecticut: Long Island Sound, May 3 
(latest). Rhode Island: May 2 (latest). Massachusetts: May 24 
(latest). Maine: April 24. Hudson Strait: June 20 (arriving). 
On the Pacific coast and through the interior late in April or 
early in May. British Columbia: Douglass, April 20 to May 10. 
Southeastern Alaska: Forrester Island, May 3 to 10; Kuiu Island, 
April 25 to May 6; Admiralty Island, May 7; Heceta Island, May 
24. Western Alaska: Bristol Bay, May 30. Indiana: Park Side, 
April 29. Michigan: Greenville, March 12. Ontario: Toronto, 
April 24 to May 1; Lake Nipissing, May 10. Alberta: Edmonton, 
May 10; Lily Lake, May 13 and 14. Mackenzie: Fort Providence, 
May 25. 
Fall migration—Southward along both coasts and through the 
interior. Mackenzie: Blackwater River, October 8. Northwestern 
‘Alaska: St. Michael, September 22 to October; Kuskokwim River, 
October 10; Nushagak, October 12. Commander Islands: Novem- 
55916—19—Bull. 107. 3 
