AMERICAN OSPREY 375 



Dr. Charles W. Townsend (1905) records the heaviest flight 

 through Essex County, Mass., during the last week in September 

 and says that it "generally precedes a heavy flight of ducks." Mr. 

 Skinner's dates for Yellowstone National Park are about the same; 

 his latest date is October 7. 



Throughout the southern portions of its range the osprey is 

 permanently resident; its numbers are greatly increased in winter 

 with migrants from farther north. 



DISTRIBUTION 



Range. — As a species the osprey is nearly cosmopolitan, and the 

 form of the Western Hemisphere (carolinensi^) ranges north to 

 Alaska and Labrador (accidental in Greenland) and south casually 

 to Paraguay, Argentina, and Chile. 



A tropical form, Pandion haliaetus ridgioayi Maynard, has been 

 described. It is resident in the Bahama Islands, the coasts of Yuca- 

 tan, and in British Honduras. 



Breeding range. — The breeding range extends north to Alaska 

 (Kowak Delta, Fort Yukon, and Kandik Kiver) ; Mackenzie (Fort 

 Kae and Bear Lake Kiver) ; northern Alberta (Poplar Point) ; north- 

 ern Saskatchewan (He a la Crosse, Knee Lake, and Churchill River) ; 

 northern Manitoba (Grass River, probably Churchill, and probably 

 York Factory) ; northern Ontario (Poplar River and Moose Factory) ; 

 Quebec (Lake Mistassini, Godbout, and Anticosti Island) ; and Labra- 

 dor (Northwest River and White Bear River). East to Labrador 

 (White Bear River and Wolf Bay) ; Newfoundland (St. George Bay) ; 

 Nova Scotia (Sydney, Antigonish, and Halifax) ; Maine (North 

 Haven and Jericho Ba}^) ; southeastern New Hampshire (Manches- 

 ter) ; Massachusetts (Swansea, Wareham. and Falmouth) ; New York 

 (Plum Island and Gardiners Island) ; New Jersey (Red Bank, Penns- 

 ville, and Cape May) ; Virginia (Chincoteague Island, Hog Island, 

 and Newport News) ; North Carolina (Orton Lake) ; South Carolina 

 (Charleston) ; Georgia (Savannah, Blackbeard Island, Cumberland 

 Island, and St. Marys) ; ,and Florida (St. Augustine, New Smyrna, 

 Wekiva River, Lake Istokpoga, and Florida Keys.) South to Flor- 

 ida (Florida Keys. Bocagrande, Marquesas Keys, St. Marks, Alaqua 

 Bayou, and Pensacola) ; Alabama (Perdido Bay, Orange Beach, and 

 Spring Hill) ; Louisiana (New Orleans and Bayou Sara) ; probably 

 rarely Texas (Refugio County and Corpus Christi) ; and Lower 

 California (Tres Marias Islands and Cape San Lucas). West to 

 Lower California (Cape San Lucas, Santa Margarita Island, Nativi- 

 dad Island, Cerros Island, San Benito Island, San Geronimo Island, 

 San Martin Island, and Todos Santos Island) ; California (San Diego, 

 San Clemente Island, San Nicolas Island, Clearlake, Garberville, 



