42 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I3I 



Buteo swainsoni Bonaparte: Swainson's Hawk 

 Bntco szvai)isoiii Bonaparte, Geogr. and Comp. List, 1838, p. 3. 



Modern form reported from late Pleistocene: McKittrick, Kern 

 County, and Rancho La Brea, Los Angeles, California. 



Buteo lagopus (Pontoppidan) : Rough-legged Hawk 

 Falco lagopus Pontoppidan, Danske Atlas, 1763, p. 616. 



Modern form reported from late Pleistocene : Rancho La Brea, Los 

 Angeles, California. 



Buteo regalis (Gray) : Ferruginous Hawk 

 Archibuteo regalis G. R. Gray, Genera of Birds, vol. i, pt. i, May 1844, pi. 6. 



Modern form reported from late Pleistocene: Hawver Cave, El- 

 dorado County, Rancho La Brea, Los Angeles, Carpinteria, Santa 

 Barbara County, and McKittrick, Kern County, California. 



Buteo fuscescens (Vieillot) : Buzzard Eagle 



Spisa'etus fuscescens Vieillot, Nouv. Diet. Hist. Nat., nouv. ed., vol. 32, Sep- 

 tember 1819, p. 55. 



Modern form " reported from late Pleistocene : Banos de Ciego 

 Montero, Santa Clara Province, Cuba. 



Buteo antecursor Wetmore 



Buteo antecursor Wetmore, Bull. Mus. Comp. Zool., vol. 75, October 1933, 

 p. 298, figs. 1-5. 



Oligocene (Brule formation) : Near Torrington, Goshen County, 

 Wyoming. 



Buteo granger! Wetmore and Case 



Buteo grangeri Wetmore and Case, Contr. Mus. Pal. Univ. Michigan, vol. 4, 

 No. 8, Jan. 15, 1934, p. 129, i pi. 



Middle Oligocene (Brule formation, Oreodon beds) : Big Badlands 

 of Pass Creek, Washabaugh County, South Dakota. 



Buteo fluviaticus Miller and Sibley 



Buteo fluviaticus A. H. Miller and C. G. Sibley, Condor, vol. 44, No. i, 

 Jan. IS, 1942, p. 39, fig. 12. 



Middle Oligocene (Brule formation, Oreodon beds) : Owl Creek, 

 6 miles east of Carr, Weld County, Colorado. 



°2 Formerly called Buteo melanoleucu^ (Vieillot). The modern range extends 

 from the mountains of Venezuela and Colombia, south through Ecuador and 

 Peru to Chile, and from southeastern Brazil and Paraguay to Tierra del Fuego. 



