AVES IBIDID.41. 35 I 



& Huds. Argent. Orn. II. p. 1 10 (1889 : cold weather visitor) ; Graham 

 Kerr, Ibis, 1891, p. 270, 1892, p. 145 (Pilcomayo, Fortin Page); 

 James, New List of Chil. B. p. 8 (1892) ; Holland, Ibis, 1892, p. 205 

 (Estancia Espartilla) ; Schalow, Zool. Jahrb. Suppl. IV. p. 678 (1898: 

 Villarica). 

 Theristiats melanopes, Heine & Reichen. Nomencl. Mus. Hein. p. 313 



(1890 : Straits of Magellan : Chili). 

 Ibis [Theristicits) caitdatus (nee Bodd.), Oust. Miss. Scient. Cap Horn, 



Oiseaux, p. 140 (1891). 

 Ibis caudatus (nee Bodd.), Frenzel, J. f. O. 1891, p. 124 (Cordova, Arg. 



Rep.). 

 Theristicus melanopsis, Sharpe, Hand-list B. I. p. 186 (1899). 

 General description. 



Size. — Adult male. (P. U. O. C. 7969. Rio Chico, Patagonia, 6 

 March 1898. A. E. Colburn.) 

 Total length, about 28 inches. 

 Wing, 16.3. 

 Culmen, 6.2. 

 Tail, 7.9. 

 Tarsus, 3.1. 



The sexes do not differ materially in size. 



Color . — Adult male (cited). General color above head and neck orange- 

 chestnut, shaded over a white ground ; back silvery grey with sandy 

 buff edging to the feathers. Below, orange-chestnut shaded on a white 

 ground to and over breast, then abruptly sooty black. 



Head : Crown deep orange-chestnut, the bases of all the feathers clear 

 white, shading to pale orange on the sides of the face and head. A naked 

 black area extending from the bill to back of the head and surrounding it. 

 Neck : Above like crown, but paler, except close to the body ; shading 

 to much paler on the sides and becoming almost white below. A naked 

 black throat-patch, having on the chin a long narrow isabelline colored 

 patch of feathers. 



Back : Mantle silvery grey, with sandy buff margins and a subterminal 

 dusky band to each feather. Lower back, rump and upper tail-coverts 

 black, with a dark green gloss. 



Tail : Rectrices black, with a dark green gloss. 



Wings : Upper wing-coverts silvery grey, lighter than the mantle, the 



