AVES FALCONID>E. 623 



BUTEO MELANOLEUCUS (Vieillot). 



Aquila obscura y blanca, Azara, Apunt. I. p. 61 (1802). 



Aquila parda, Azara, torn cit p. 65. 



Spizachts itielanolcucus, Vicill. N. Diet d'Hist. Nat. xxxii. p. 57 (1819: 



ex Azara, p. 61). 

 Spizaetus fnsccsccns, Vicill. torn cit. p. 55 (ex Azara, p. 65); Hartl. Ind. 



Azara, p. i (1847). 



/'(i/co agttia, Temm. PI. Col. I. pi. 302 (1824). 

 Haluichts agtiia, Cuv. Regn. Anim. I. p. 327 (1829); Frascr, P. Z. S. 1843, 



p. 108 (mountainous parts of Chili). 



Haliactus melanoleucus, D'Orbign. Voy. Amer. Merid. p. 76 (1835: Pat- 

 agonia); id. & Lafr. Syn. Av. p. 3 (1838); Burm. Reis. La Plata, II. 



p. 435 (1861 : Parana: Tucuman : Pampas); C. Burm. An. Mus. Nac. 



Buenos Aires, III. part X. p. 241 (1888: Northern Patagonia), part 



x ' P- 3*5 (1890: Rio Singeur: Rio Chico del Chubut). 

 Geranoaetus agnia, Kaup, Classif. Saug. u. Vog. p. 122 (1844); Hartl. 



Naum. 1853, p. 220. 



Buteo agtiia, Cab. & Tschudi, Arch, fiir Nat. 1844, p. 264. 

 Pontoaetus melaiiolcucus. Gray, Gen. B. I. p. 18 (1845); Hartl. Ind. Azara, 



p. i (1847); DCS Murs in Gay's Hist. Chil. Zool. I. p. 221 (1847); 



Phil. & Landb. Cat. Av. Chil. p. 4 (1868). 

 Cuncuma inelanolencus. Gray, Cat. Accipitr. p. 25 (1848). 

 Heteroaefus agitia, Kaup, Contr. Orn. 1850, p. 74. 

 Geranoaetus melanoleucus, Strickl. Orn. Syn. p. 55 (1855); Pelz. Reis. 



Novara, Vog. p. 7 (1865: Chili); Scl. & Salv. Ibis, 1869, p. 284 



(Cape Negro, Nov.); Cunningh. Nat. Hist. Str. Magell. p. 269(1871); 



Huds. P. Z. S. 1872, pp. 536, 549 (Rio Negro); Scl. & Salv. 



Nomencl. Av. Neotr. p. 119 (1873); Lee, Ibis, 1873, p. 131 (Argent. 



Rep.); Gurney, Ibis, 1876, p. 66; Durnf. Ibis, 1877, P- 3^ (Chupat 



Valley, breeding in Nov.), 1878, p. 397 (Tambo Point, Dec. nesting); 



Scl. & Salv. P. Z. S. 1878, p. 434; Gibson, Ibis, 1879, p. 409 (Cape 



San Antonio, Dec. breeding); Scl. & Salv. Voy. Chall. II. Birds, p. 



104 (1880: Elizabeth Isl., Jan.); Doering, Expl. al Rio Negro, Zool. 



p. 51 (1882: banks of the Rio Negro, breeding); White, P. Z. S. 



1882, p. 263 (Campo Colorado, Oran, Salta, Nov.); Gurney, List 



Diurn. B. Prey, p. 74 (1884); Barrows, Auk, I. p. 110(1884: Entre- 



