38 FALCONIDyE. 



56. BUTEO INSIGNATUS, Cassin, 1854. —Mus.N. H.S.Montreal. 



Buteo insignatus, Cass. B. Calif. & Tex. p. 102. 

 Habitat. — N. America. Canada. 



57. BUTEO CALURUS, Cassin, 1855.— Mus. 



Buteo calurus, Cass. Proc. Ac. Sc. Philad. 1855, p. 281. 

 Habitat. — New Mexico. 



58. BUTEO ELEGANS, Cassin, 1855.— Mus. 



Buteo elegans, Cass. Proc. Ac. Sc. Philad. 1855, p. 281. 

 Habitat. — California. New Mexico. 



59. BUTEO OXYPTERUS, Cassin, 1855.— Mus. 



Buteo oxypterus, Cass. Proc. Ac. Sc. Philad. 1855, p. 282. 

 Habitat. — New Mexico*. 



60. BUTEO PLUMIPES, Hodgson, 1845.— Mus. Brit. 



Buteo plumipes, Hodgs. Proc. Zool. Soc. pt. 13. p. 37. — Gray, 

 Gen. B. fol. sp. 5. 



Circus plumipes, Hodgs. Blytli, Journ. As. Soc. Beng. xv. p. 2, 



Archibuteo plumipes, Blyth, Journ. As. Soc. Beng. xix. p. 338. 



Habitat.— ^.Xsxsi. Nepal (iZ^oc?^*.). Tihei {Blyth). 



Genus ARCHIBUTEO, Brehm. 1828. 



61, ARCHIBUTEO LAGOPUS, (Briinnich) 1764. — Mus. Strick- 

 land, No. 20. Jard., Brit. 



Accipiter falco leucocephalus, B7'iss. Orn. i. p. 325. 



Falco lagopus, Briinn. Orn. Bor. p. 4. sp. 15. — Penn. Arct. 

 Zool. App. pi. 1 . — Gmel. Syst. Nat. p. 260. — Lath. Ind. Orn. 

 p. 19 ; Syn. i. p. 75. sp. 54 ; Supp. i. p. 18 ; Gen. Hist. i. 

 p. 67. — Siemss. Handb. p. 15. — Baud. Tr. Orn. ii. p. 107. — 

 Shaw, Zool. vii. p. 145. — Naum. Nat. Vog. Deutschl. ed. nov. 

 i. p. 359. pi. 26. f. 44. — Meyer, Taschenb. deutsch. Vogelk. 



* The Nos. 56, 57, 58, 59 are species or presumed species obtaiaed during the 

 late American surveying expeditions, characterized and described by Mr. Cassin 

 at the commencement of the present year. 



