584 



PATAGONIAN EXPEDITIONS I ZOOLOGY. 



Ibycter chimango, Kaup, Arch, fur Naturg. 1850, p. 41 ; Sharpe, Cat. B. 

 Brit. Mus. I. p. 41 (1874); id. P. Z. S. 1881, p. 10 (Cockle Cove, 

 Feb.; Talcahuano, Sept.); Carbajal, La Patagonia, Part II. p. 257 

 (1900); Martens.Hamb. Magalh. Sammelr. p. 5 (1900: Tier. d. Fuego). 



GENERAL DESCRIPTION. 



Size. Adult male, P. U. O. C. 8675. La Plata, Argentina, April, 1895. 



Total length, about 17.25 inches. 



Wing, 12.2 inches. 



Culmen, 1.2 inches. 



Tail, 7.6 inches. 



Tarsus, 2.6 inches. 



FIG. 290. 



Milvago chimango. P. U. O. C. 8675. Detail of head. Natural size. 



Color. Adult. 



General color. Reddish brown, more or less shaded with ashy above 

 and with whitish and cinnamon below ; tail greyish, with a conspicuous 

 sub-terminal band of deep seal-brown. 



Head: Crown of characteristic lanceolate feathers, dull reddish brown, 

 with median black streaks and shaded marginally and terminally with 

 obscure ashy grey ; forehead and a pronounced supraciliary stripe, reaching 

 back to the ears, black or blackish ; the cheeks and sides of the face with 

 fine black lines, on a lighter, yellowish brown ground. 



