ORDER RAPTORES. 159 



Bnteo abbievi&tus Cabanis. Zone-tailed Hawk. [340.] 



Buteo abbrematus Cabanis, in Schombttbgk, Reisen Brit. Guiana, III, 

 1848, 739. (Upper Pomeroon, British Guiana.) 



Range. — Lower Sonoran Zone in Arizona, New Mexico, and south- 

 western Texas south through Mexico and Central America to Vene- 

 zuela and British Guiana; casual in southern California. 



Buteo swainsoni Bonaparte. Swainson's Hawk. [342.] 



Buteo swainsoni Bonapahte, Geog. & Comp. List, 1838, 3. (Near the 

 Columbia River.) 



Range. — North and South America. Breeds from southern Brit- 

 ish Columbia, Fort Yukon, Alaska, northwestern Mackenzie, and 

 Manitoba south to Chile; casual in Quebec, Ontario, Maine, and 

 Massachusetts; winters from South Dakota southward. 



Buteo platyptenis (Vieillot). Broad-winged Hawk. [343.] 



Sparvius platypterus Vieillot, Tableaux Encycl. M^th., Ill, 1823, 1273. 

 (Schuylkill River, near Philadelphia, Pa.) 



Range. — Eastern North America. Breeds from central Alberta, 

 southeastern Saskatchewan, northern Ontario, New Brunswick, and 

 Cape Breton Island south to the Gulf coast and central Texas, mainly 

 east of the Mississippi; winters from the Ohio and Delaware valleys 

 south to Venezuela and Peru. 



Subgenus TACHYTRIOECHB Kaot. 



TachytTiorchis Kaup, Class. Saug. und Vogel, 1844, 123. Type, by 

 monotypy, Falco pterocles Tbmminck = Buteo albicaudatus Vieillot. 



Buteo albicaudatus Vieillot. 



Range. — Texas south through Mexico, Central America, and 

 South America to Chile and Argentina. 



a. [Buteo albicaudatus albicaudatus. Extralimital.] 



6. Buteo albicaudatus sfinnetti Allen. Sennett's White-tailed Hawk. [341.] 



Buteo albicaudatus sennetti Allen, Bull. Am. Mus. N. H., V, July 19, 

 1893, 144. (Lower Rio Grande Valley, Texas.) 



