66 CHECK-LIST OF NORTH AMERICAN BIRDS. 



Winters from Kansas, northeastern Iowa, southern Illinois, Indiana, Ohio, 

 central New York, Vermont, New Hampshire, and southern Maine to north- 

 eastern Mexico and the Gulf coast of the United States. Accidental in 

 England. 



Buteo borealis umbrinus Bangs. Florida Red-tailed Hawk. [337/.] 



Buteo borealis umbrinus Bangs, Proc. New Engl. Zool. Club, II, 68, July 

 31, 1901. (Myakka, Manatee Co., Florida.) 



Range. — Southern Florida, Cuba, and the Isle of Pines. 



Buteo borealis krideri Hoopes. Krider's Hawk. [337a.] 



Buteo borealis var. kriderii Hoopes, Proc. Acad. Nat. Sci. Phila., [XXV] 

 1873, sig. 16 [June 3], 238 (pi. 5). (Winnebago County, Iowa.) 



Range. — Breeds from southern Alberta, southern Saskatchewan, southern 

 Manitoba, Wyoming, North Dakota, and Minnesota south to Nebraska and 

 Missouri. Winters south to Wisconsin, Illinois, Louisiana, and Mississippi. 

 Accidental in Florida and Georgia. 



Buteo borealis calurus Cassin. Western Red-tailed Hawk. [3376.] 



Buteo calurus Cassin, Proc. Acad. Nat. Sci. Phila., VII, No. 7, Jan.-Feb., 

 1855 [May 22], 281. (Fort Webster [Rio Mimbres], New Mexico.) 



Range. — Breeds from southeastern Alaska and' central western Mackenzie 

 south to southern Lower California and east to the edge of the Great Plains. 

 Winters from southwestern British Columbia and throughout California to 

 Guatemala. Casual farther east in migration. 



Buteo borealis harlani (Audubon). Harlan's Hawk. [337d.] 



Falco Harlani Audubon, Birds Amer. (folio), I, pi. 86, 1830 (Orn. Biog., 

 I, 1831, 441). (St. Francisville. Louisiana.) 



Range. — Breeds in northwestern British Columbia, southwestern Yukon, 

 and adjoining parts of Alaska south at least to southern Alberta. In winter 

 down the Mississippi Valley to the Gulf States. Casual in California, i 



[Allied races of B. borealis occur in Jamaica, Haiti, Porto Rico, and Costa 

 Rica. 



Buteo lineatus lineatus (Gmelin). Northern Red-shouldered Hawk. [339.] 



Falco lineatus Gmelin, Syst. Nat., I, Pt. i, 1788, 268. Based on the Red- 

 shouldered Falcon Pennant, Arct. Zool., II, 206. (in insula Longa = 

 Long Island, New York.) 

 Range. — -Breeds from Ontario, southern Quebec, Nova Scotia, and Prince 

 Edward Island south to southern Kansas, northeastern Tennessee, and North 



1 While there seems to be a well marked dark Red-tailed Hawk in the far 

 northwest it is questionable whether Audubon's plate represents the same bird 

 and whether all dark Red-tails are identical. Both they and light Krider's 

 Hawks have been regarded as mere plumage phases oi Buteo b. borealis (Gmelin). 



