110 BULLETIN 16 7, UNITED STATES NATIONAL MUSEUM 



central Utah (Manti) ; Colorado (Clear Creek, Boulder, and Fort 

 Lyon); Nebraska (Neligh) ; rarely Minnesota (Parkers Prairie, 

 Minneapolis, and Lanesboro) ; rarely southern Michigan (Grand 

 Rapids, Ann Abor, Ypsilanti, and Wayne County); New York 

 (Rochester and Auburn) ; and occasionally Maine (Portland) . East 

 to occasionally Maine (Portland) ; New Hampshire (Dover) ; eastern 

 Massachusetts (Taunton); eastern Pennsylvania (Philadelphia); 

 Virginia (Accotink and Fort Union) ; North Carolina (Raleigh) ; 

 South Carolina (Oakley Depot) ; Georgia (Savannah, Blackbeard 

 Island, and Okefinokee) ; Florida (St. Augustine, Orlando, St. Lucie, 

 and Fort Myers) ; Yucatan (Chable) ; Nicaragua (Escondido River) ; 

 Costa Rica (San Jose and Volcano de Irazu) ; and Panama (Chiri- 

 qui). South to Panama (Chiriqui) ; western Guatemala (San 

 Geronimo) ; Oaxaca (Tehuantepec) ; Guerrero (Acapulco) ; southern 

 Sinaloa (Mazatlan) ; and southern Lower California (San Jose del 

 Cabo) West to Lower California (San Jose del Cabo) ; California 

 (San Clemente Island, Santa Barbara, Pacific Grove, San Francisco, 

 Berkeley, Marysville, East Park, and Paynes Creek) ; western Oregon 

 (Salem) ; probably western Washington (Fort Steilacoom and Port 

 Orchard) ; and southern British Columbia (Victoria). 



Winter occurrences at more northern points are not infrequent. 

 In Alaska, Willett (1927) saw it at Wrangell on January 2, 1921, 

 at Craig on November 22, 1922, and took a female near Ketchikan on 

 February 9, 1926. One was noted at Ottawa, Ontario, on January 9, 

 1900 (Macoun), while Eifrig (1907b) saw another at this place 

 during the winter of 1903-04. Mousley (1918) reported that it win- 

 tered at Hatley, Quebec, in 1916. . 



Migration.— DQS^iiQ the fact that this hawk may be found in 

 winter over a large portion of its breeding range, it nevertheless per- 

 forms a very definite migration. In some years the autumn flight 

 at certain favored points is most conspicuous. Since the usual 

 method of presenting dates of arrival and departure north of the 

 winter range would not portray an adequate picture of the 

 movement of this species, it seems preferable instead to include com- 

 ment relative to the migration as observed at certain places. Among 

 the more or less famous observation points are : The hills of northern 

 New Jersey; the eastern end of Long Island and smaller adjacent 

 islands, particularly Fishers Island, N. Y.; the eastern end of Lake 

 Ontario, N. Y.; Point Pelee, Ontario; and Charity Islands and 

 Whitefish Point, Mich. 



Spring migration.— In northern New Jersey the heavy spring 

 flights of sharp-shinned hawks take place usually during the latter 

 part of April and the first 10 days of May. At Shelter Island, N. Y., 

 the movement has sometimes started the last of March and continued 

 through April. 



