606 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



of Magellan); Oust. Miss. Scient. Cap Horn, Oiseaux, pp. 21, 324 

 (1891 : Punta Arenas, Feb.; Orange Bay, June; Sandy Point, Feb.); 

 Graham Kerr, Ibis, 1892, p. 143 (Lower Pilcomayo); Lane, Ibis, 1897, 

 p. 1 80 (Maquequa); Sharpe, Hand-list B. I. p. 254 (1899); Martens, 

 Hamb. Magalh. Sammelr. p. 5 (1900: Straits of Magellan); Salvad. 

 Ann. Mus. Genov. (2), xx. p. 614 (1900: Penguin Rookery, Feb.; 

 Punta Arenas, May). 



Accipiter cooperi, (Pelz. (nee Bp.), Reise Novara, Vog. p. 13 (1865 : Chili). 



Nisus chilensis, Giebel, Thes. Orn. 2, p. 706 (1872). 



Cooper astur chilensis, Gurney, Ibis, 1875, p. 469; id. List Diurn. B. Prey, 

 p. 144 (1884). 



FIG. 300. 



v 



Accipiter chilensis. Profile of head. Natural size. 



GENERAL DESCRIPTION. 



* 



Size. Adult male. 



Total length, about 16.00 inches. 



Wing, 8.50 inches. 



Culmen (including cere), 1.25 inches. 



Tail, 7.90 inches. 



Tarsus, 2.50 inches. 



The adult female is noticeably larger than the adult male ; length, 18.00 

 inches; wing, 10.00 inches; tail, 8.25 inches; tarsus, 3.90 inches. 



Color. Adult male. The sexes are alike in color. 



Head : Dull brownish slate, shaded heavily with blackish on the crown ; 

 sides of the face and ear-coverts much lighter ashy grey. 



Neck : The nape and sides clear ashy slate with a brownish tinge ; chin 

 and throat whitish, the throat streaked and mottled with dull ashy-brown 

 markings. 



