FALCONIDJE. 37 



d. BUTEOGALLUS. 



14. BUTEO JEQUINOCTIALIS. The equinoctial Eagle. 



Falco aequinoctialis Gmel. S. N. i. p. 265. 

 Falco buson Daud. Tr. d'Orn. ii. p. 168. 

 Buteogallus cathartoides Less. Tr. (TOrn. p. 83. 

 Aquila urubutinga Spix, Av. Bras. t. 1. 1 ? 



Buteo (Buteogallus) buson Kaup, Classif. der Sdug. et Vog. p. 123. 

 Buteo (Ichthyoborus) aequinoctialis (pars) Kaup, Isis, (1847) 

 p. 333. 



Azara, No. 14.; Levaill. Ois. dAfr. t.21. 



a. South America, adult. 



b. British Guiana, young. Presented by the Royal Geo- 



graphical Society. 



15. BUTEO NIGRICOLLIS. The Pamena Eagle. 



Buteo nigricollis G. R. Gray, Gen. of B. p. (sp. 13.) 



Falco nigricollis, Lath. Ind. Orn. i. p. 35. 



Aquila milvoi'des Spix, Av. Bras. 1. 1. d. 



Falco busarellus, Daud. Tr. a" Orn. ii. p. 168. 



Buteo busarellus D'Orb. et Lafr. Syn. Av. p. 6. 



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



Circus leucocephalus Vieill. N. Diet. d'Hist. Nat. iv. p. 465. 



Buteo (Ichthyoborus) busarellus Kaup, Mus. Senchenb. (1845) 



p. 261. 

 Buteo (Ichthyoborus) aequinoctialis (pars) Kaup, Isis, (1847) 



p. 333. 



Azara, No. 13. ; Levaill. Ois. dAfr. t. 20. 



a. Brazil. Presented by J. E. Gray, Esq. 



b. Brazil. Presented by M. Gen. T. Hardwicke 



e. LEUCOPTERNIS. 

 16. BUTEO MELANOPS. The Streaked Falcon. 



Buteo melanops G. R. Gray, List of Birds, Brit. Mus. i. p. 17. 

 Falco melanops Lath. Ind. Orn i. p. 37. 



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

 PL col. 105. 



a, b. South America. From Mr. Leadbeater's Collection. 

 c. South America. 



