132 CHECK-LIST OF NORTH AMERICAN BIRDS. 



389 b. Buteo lineatus elegans (Cass.). 



Red-bellied Hawk. 



Buteo elegans Cass. Pr. Ac. Nat. Sci. Phila. 1855, 281. 

 Buteo lineatus var. elegans Ridgw. in Hist. N. Am. B. III. Jan. 

 1874, 257, 277. 



[B 26, C 352^, R 439^, C 521.] 



Geog. Dist. — Western United States, from western Texas to Cal- 

 ifornia and Oregon, south into Lower California, Sonora, and Chihua- 

 hua. Breeds along the Pacific coast of central Oregon, south to 

 northern Lower CaUfornia. 



340. Buteo abbreviatus Cab. 



Zone-tailed Hawk. 



Buteo abbreviatus Cab. in Schomb. Reise Brit. Guian. III. 1848, 

 739- 



[B— C353,R44o, C522.] 



Geog. Dist. — Texas, New Mexico, Arizona, and southern Cali- 

 fornia, south to northern South America. 



Subgenus TACHYTRIORCHIS Kaup. 



Tachytriorchis Kaup, Class. Saug. u. Vog. 1844, 123. Type, 

 Falco pterocles Temm. = Buteo albicaudatus Vieill. 



341. Buteo albicaudatus sennetti Allen. 



Sennett's White-tailed Hawk. 



Buteo albicaudatus sennetti Allen, Bull. Am. Mus. Nat. Hist. V. 

 1893, 144. 



[B— , C— , R441, C513.] 



Geog. Dist. — Lower Rio Grande Valley, Texas, and southward 

 into Mexico. 



342. Buteo swainsoni Bonap. 



Swainson's Hawk. 



Buteo swainsoni Bonap. Geog. & Comp. List, 1838, 3. 



