32 PACIFIC COAST AVIFAUNA No. 3 



178 (332) Accipiter velox rufilatus Ridgway. 



Western Sharp-shinned Hawk. 



Syn. — Accipiter velox; Accipiter fuscus. 



Status — Common winter visitant throughout the State below Boreal; remains through 

 the summer and breeds in small numbers in Transition and Boreal. 



179 (333) Accipiter cooperi (Bonaparte) Gray. 



Cooper Hawk. 



Syn. — Accipiter cooperi tnexicanus; Accipiter mexicanus; Nisus cooperi \ Astur cooperi; 



Ntsus cooperi var. mexicanus. 

 Status — Fairly common resident almost throughout the State. 



180 (334 a) Accipiter atricapillus striatulus Ridgway. 



Western Goshawk. 



Syn. — Astur atricapillus; Astur palumbarius var. striatulus. 



Status — Rather rare resident in the northern part of the State; recorded south in winter 

 to Paicines, and in summer through the Sierras to Kaweah River. 



181 (337 b) Buteo borealis calurus (Cassin) Ridgway. 



Western Red-tailed Hawk. 



Syn. — Buteo borealis; Buteo calurus; Buteo montanus. 

 Status — Abundant resident almost throughout the State. 



182 (339 b) Buteo iineatus elegans (Cassin) Ridgway. 



Red-bellied Hawk. 



SvN. — Buteo lineatus; Buteo elegans. 



Status — Common resident below Boreal; breeds chiefi} in the Upper Sonoran interior 

 valleys. 



183 (340) Buteo abbreviatus Cabanis. 



Zone-tailed Hawk. 



Syn, — Buteo zonocercus. 



Status — Known only from the specimen, still extant, taken by J. G, Cooper near San 

 Diego, March, 1862. 



184 (342) Buteo sv/ainsoni Bonaparte. 



Swainson Hawk. 



Syn. — Buteo insignatus; Buteo obsoletus; Buteo harlani; Buteo oxypterus. 



Status — Common spring and summer visitant to the interior valleys west of the Sierras; 

 breeds numerously in the Sau Joaquin-Sacramento Valley and in the San Diegan dis- 

 trict. 



^^5 (347 a) Archibuteo sancti-johannis (Gmelin) Gray. 



American Rough- legged Hawk. 



Syn. — Archibuteo lagopus; Archibuteo lagopus sancti-johannis. 



Status — Rather rare winter visitant south through the central part of the State. 



