648 



PATAGONIAN EXPEDITIONS : ZOOLOGY. 



nating power on the vision, so surpassingly bright was it by constrast in 

 the midst of that universal unrelieved greyness." 



BuTEO swAiNSONi, Bonaparte. 



Buteo swainsoni, Bonap., Geogr. and Comp. List, p. 3 (1838); Scl. & 

 Salv. Nomencl. Av. Neotr. p. 119(1873); Gurney, Ibis, 1876, p. 234, 

 id. List Diurn. B. Prey, p. 68 {1884); Scl. & Huds. Argent. Orn. II. p. 

 59, pi. xvi (1889); Sharpe, Hand-list B. I. p. 256 (1899). 



Fig. 329. 



Buteo szvainsoni. Adult male. About one-fourth natural size. From a bird 

 in the American Museum. 



Biiteo obsoletus, Sharpe, Cat. B. Brit. Mus. I. p. 184 (1874: Patagonia); 

 Burm. An. Mus. Nac. Buenos Aires, III, part X, p. 241 (1888: Pat- 

 agonia); Martens, Hamb. Magalh. Sammelr. p. 6 (1900: Patagonia); 

 Albert, Contr. Estud. Av. Chil. II. p. 516 (1901). 



Buteo pictus, Phil. Voy. Chil. Arch. Naturg. 1899, p. 169. 



Buteo macro7iychus, Phil. torn. cit. p. 168. 



