38 ACCIPITRES DIUENI. 



17. BUTEO ALBICOLLIS. The white-necked Falcon. 



Buteo albicollis G. R. Gray, List Birds, Brit. Mm. p. 17. 

 Falco albicollis Lath. Ind. Orn. p. 36. 

 Falco picatus Shaw, Gen. Zool. vii. p. 167. 

 Asturina (Leucopternis) albicollis Kaup, Isis, (1847) p. 210. 

 a. South America, young. From Mr. Turner's Collection. 



18. BUTEO SCOTOPTERUS. The Brazilian Buzzard. 



Falco lacernulatus Temm. pi. col. 437. 



Falco scotopterus Pr. Max. Beitr. ii. p. 204. (1831.) 



Asturina (Leucopternis) scotopterus Kaup, Isis, (1847) p. 211. 



a. Bogota. From Mr. Leadbeater's Collection. 



b. Brazil. Presented by Lord Stuart de Rothsay. 



19. BUTEO POLIONOTUS. The grey-backed Buzzard. 



Buteo polionotus G. R. Gray, List Birds, Brit. Mus. p. 17. ; Kaup, 



Isis, (1847) p. 212. 

 Buteo melanotus Vieitt. N. Diet, a" Hist. Nat. iv. p. 472. ? 



a. South America. 



b. South America. From Dr. Smith's Collection. 



c. South America. From Mr. Leadbeater's Collection. 



2. ARCHIBUTEO. 



Archibuteo Brehm, Isis, (1828) p. 1269. 



Triorchis Kaup, Naturl. Syst Eur. Thier. p. 84. (1829.) 



Butaetes Less. Tr. dOrn. p. 83. (1831.) 



Butaquila Hodgs. Gray, Zool. Misc. (1844) p. 81. 



1. ARCHIBUTEO LAGOPUS. The rough-legged Falcon. 



Archibuteo lagopus G. R. Gray, List Gen. of Birds, p. 3. ; Kaup, 



Classif. der Saug. und Vog. p. 123. 

 Falco lagopus Briln. Orn. Bor. p. 4. 

 Falco plumipes Daud. Tr. a" Orn. ii. p. 163. 

 Falco sclavonicus Lath. Ind. Orn. i. p. 26. 

 Falco pennatus Cuv. Reg. An. (1817) i. p. 323. 

 Archibuteo planiceps Brehm, Vog. Deuts. i. p. 40. 

 Archibuteo alticeps Brehm, Vog. Deuts. i. p. 40. t. iv. f. 2. 



