30 ACCIPITRES DIURNI. 



Aquila pezoporos Meyen, Nov. Act. xvi. t. 6. 



Polyborus (Milvago) pezoporos Kaup, Classif. der Sang, und Vog. 



p. 124. 

 Ibycter (Milvago) chimango Kaup, Mus. Senckenb. (1845) p. 262. ; 



Azara No. 5. ; G. R. Gray and Mitch. Gen. of B. pi. 5. 



a, b. South America ? 



c. South America, Antarctic Expedition. Presented by the 

 Admiralty. 



b. PHALCOBMXUS. 



3. MILVAGO MEGALOPTERUS. The long-winged Caracara. 



Milvago megalopterus G. R. Gray, Voy. of Beagle, Birds, p. 21. 



Aquila megaloptera Meyen, Nov. Act. (1834) t. 8. 



Phalcobaenus montanus D'Orb. et Lafr. Voy. dans TAmer. Mer. 



Ois. t. 2. 

 Ibycter (Phalcobaanus) montanus Kaup, Isis, (1847) p. 354. 



a. Chili. Presented by C. Crawley, Esq. 



b. Cordillera. From Mr. Cuming's Collection. 



c. Chili. From Mr. Brydges' Collection. 



c. AETOTRIORCHIS. 



4. MILVAGO AUSTRALIS. The southern Caracara. 



Falco australis Gmel. S. N. i. p. 259. 



Milvago leucurus G. R. Gray, Voy. of Beagle, Birds, p. 15. 



Falco leucurus Forst. Icon. ined. 34. 



Vultur plancus fern. Forst. Descr. An. p. 323. 



Falco novae zealandise Temm. 



Circaetus antarcticus Less. Tr. d'Orn. p. 49. 



Falco ambustus Gmel. S. N. i. p. 252. ? 



Ibycter (Aetotriorchis) australis Kaup, Classif. der Sdug. und Vog. 



p. 124. 



Lath. Syn. i. pi. 4.; PI. col. 192. 224.; Jard. and Selby, 111 



Orn. N. S. t. 24. 



a. South America, male adult. From Mr. Leadbeater's 



Collection. 



b. South America, female adult. From Mr. Leadbeater's 



Collection. 



c. Coast of South America, young. Presented by the Ad- 



miralty* 



