452 



PATAGONIAN EXPEDITIONS: ZOOLOGY. 



Chall. II. Birds, p. 107 (1881 : Straits of Magellan); Sharpe, P. Z. 

 S. 1 88 1, p. 13 (Coquimbo); Doering, Expl. al Rio Negro, Zool. Aves, 

 p. 54 (1882: Rio Sauce (Chico): Rios Negro & Colorado); Barrows, 

 Auk, I. p. 274 (1884 : Bahia Blanca); Scl. & Huds. Argent. Orn. II. 

 p. 135 (1889); Oust. Miss. Sci. Cap Horn, Oiseaux, p. 210 (1891); 

 Holland, Ibis, 1892, p. 208 (Estancia Espartilla, common resident, 

 breeds in Nov.); James, New List Chil. B. p. 9 (1892); Salvad. Cat. 

 B. Brit. Mus. XXVII. p. 236 (1895); Lane, Ibis, 1897, p. 194 (Rio 

 Pilmaiguen : Rio Bueno, Feb.); Schalow, Zool. Jahrb. Suppl. IV. p. 

 674 (1898: Concepcion); Sharpe, Hand-list, B. I. p. 218 (1899); 

 Carbajal, La Patagonia, Part II. p. 282 (1900); Martens, Hamb. 

 Magalh. Sammelr. p. 25 (1900: Straits of Magellan: Falkland 

 Islands). 

 Anas [Mareca] sibilatrix, Reichen. Orn. Centralbl. 1882, p. 20. 



General description. 



Size. — Male, P. U. O. C. 7835, Rio Coy, Patagonia, 24th January, 1898 

 (breeding bird), A. E. Colburn, collector. 



Total length, about 20 inches. 



Wing, 10.5. 



Culmen, 1.5. 



Tail, 4.0. 



Tarsus, 1.55. 



Color. — (Male cited above.) General color: dark above, light beneath, 

 with chestnut sides, black neck, iridescent green-purple hood and white 



forehead. 



Fig. 230. Fig. 231. 



Mareca sibilatrix, adult male, P. U. O. C. Mareca sibilatrix. Bill and forehead from 



7833 (breeding). Pattern of color disposal on in front. ^ natural size, 

 head and face. About ^ natural size. 



