158 CHECK-LIST OF NORTH AMERICAN BIRDS. 



RANGE. Western North America from the middle Yukon, and central 

 western Mackenzie south to Cape San Lucas and Guatemala ; east to western 

 part of the Great Plains; casual in Illinois and Ontario. 



d. Buteo borealis hailani (AUDUBON). Harlan's Hawk. [337d.] 



Falco harlani AUDUBON, Birds Amer. (folio), I, 1830, pi. 86. (Near St. 

 Francisville, Louisiana.) 



RANGE. Lower Mississippi Valley and Gulf States, from Louisiana to 

 Georgia and Florida; casual in Colorado, Texas, Kansas, Nebraska, Iowa, 

 Illinois, and Pennsylvania. 



(. Buteo borealis alasce*nsis GRINNELL. Alaska Red-tail. [337c.] 



Buteo borealis alascensis GRINNELL, Univ. Calif. Pub. Zool., V, No. 2, 

 Feb. 18, 1909, 211. (Glacier Bay, Alaska.) 



RANGE. Southeastern Alaska from Yakutat Bay to Admiralty Island and 

 the Sitka islands. 



Buteo lineatus (GMELIN). 



RANGE. North America from southern Canada south to northern 

 Mexico. 



a. Buteo lineatus lineatus (GMELIN). Red-shouldered Hawk. [339.] 



Falco lineatus GMELIN, Syst. Nat., I, i, 1788, 268. (Long Island, New 

 York.) 



RANGE. Eastern North America. Breeds from Manitoba, southern 

 Keewatin, southern Quebec, Nova Scotia, and Prince Edward Island south 

 nearly to the Gulf States and west to edge of the Great Plains; winters 

 south to the Gulf coast. 



b. Buteo lineatus alleni RIDGWAY. Florida Red-shouldered Hawk. [339a.] 



Buteo lineatus alleni RIDGWAY, Proc. U. S. Nat. Mus., VII, Feb. 25, 1885, 

 514. (Tampa, Florida.) 



RANGE. Southern part of Lower Austral Zone of South Atlantic and Gulf 

 States from South Carolina through Texas into Tamaulipas, Mexico. 



c. Buteo lineatus Slogans CASSIN. Red-bellied Hawk. [3396.] 



Buteo elegans CASSIN, Proc. Acad. Nat. Sci. Phila., VII, 1855, 281. (Cali- 

 fornia.) 



RANGE. Transition and Sonoran zones from southern British Columbia 

 and California south to Lower California and northwestern Mexico. 



