COOPER'S HAWK 123 



September, but they are often accompanied by ospreys and the 

 Buteos. They fly high and seem to prefer to fly when the wind is 

 from the northwest. Otto Widmann (1907) says that in Missouri 

 "wholesale migration has been noticed from about the twentieth to 

 the twenty-sixth of September, when singly or in pairs they have 

 followed each other at intervals of a few minutes, from ten to twenty 

 being visible to tlie spectator, but, as they are known to advance in a 

 bi'oad front, the whole movement must mean the depopulation of a 

 large district." 



DISTRIBUTION 



Range. — North and Central America. 



Breeding range. — During the breeding season, Cooper's hawk is 

 found north to British Columbia (Fort St. James and probably Yel- 

 lowhead Lake) ; probably rarely Alberta (Jasper Park and Edmon- 

 ton) ; Manitoba (Oak Lake, Treesbank, and probably Kalevala) ; 

 northern Michigan (Sault Ste. Marie) ; southern Ontario (Kenora, 

 Sudbury, and Aylmer) ; Quebec (Montreal) ; and New Brunswick 

 (Restigouche Valley). East to New Brunswick (Restigouche Val- 

 ley and St. John) ; Maine (Calais, Bucksport, and South Warren) ; 

 New Hampshire (Franklin Falls and Webster) ; Massachusetts 

 (Andover, Taunton, and Fall River) ; Connecticut (Norwich and 

 New London) ; eastern New York (Shelter Island) ; New Jersey 

 (Red Bank, Vineland, Sea Isle City, and Cape May) ; North Carolina 

 (Raleigh) ; South Carolina (Society Hill) ; Georgia (Savannah and 

 probably Okefinokee Swamp) ; and Florida (Branford, Micanopy, 

 Orlando, and Manatee). South to Florida (Manatee and St. Marks) ; 

 Alabama (Greensboro) ; Louisiana (St. Francisville) ; Texas (Mar- 

 shall and Kerrville) ; probably New Mexico (Mesilla Park and Silver 

 City) ; Arizona (Huachuca Mountains and the Santa Rita Moun- 

 tains) ; and northern Lower California (El Rosario.) West to 

 northern Lower California (El Rosario and Guadalupe) ; California 

 (San Diego, Escondido, Santa Ana Canyon, probably Santa Cruz 

 Island, Fort Tejon, San Miguel, Paicines, and Mineral) ; Oregon 

 (Klamath Falls, Elkton, Corvallis, and Dayton) ; Washington 

 (Camas, Olympia, Tacoma, and Seattle) ; and British Columbia 

 (Pemberton, Cariboo District, and Fort St. James). 



The species has been detected casually in summer at still more 

 northern latitudes. One was seen August 25, 1920, at Fort Albany 

 in northern Ontario (Williams, 1921); C. W. Townsend (1913) 

 recorded one seen at the mouth of the Natashquan River, Quebec, on 

 July 30, 1912; while the same authority (1906) notes one seen on Cape 

 Breton Island, Nova Scotia. 



^Y^nter range. — The winter range of Cooper's hawk extends north 

 to Oregon (Salem) ; Colorado (Lay and Clear Creek) ; Kansas 



