AVES FALCONID^B. 587 



to adults ; the general color is more pervaded by cinnamon, giving to the 

 whole a redder shade ; the region about the eye has no defined supraciliary 

 stripe, but there is here the same shade that prevails on the crown ; the 

 back is deep brown, relieved by ashy edging to each feather ; the rump 

 and upper tail-coverts much as in the adult ; the tail with no defined sub- 

 terminal bar, but otherwise much as in old birds, not so light, however, 

 and more coarsely freckled with dark brown. This is also true of the light 

 portion of the primaries and of the primary coverts, and the bands across 

 these are not distinct as in the adult; seen from beneath, the tail is 

 obscurely barred with dark brown ; the inferior surface of the wings is 

 more strongly cinnamon than in adult birds and the dark bars on this 

 ground show very distinctly ; the lower parts are more pervaded with white 

 and ashy shades and the browns are redder than in old birds ; there is 

 fairly distinct barring on the abdomen and flanks, cinnamon-brown mark- 

 ings on a dirty white ground ; the thighs are strongly shaded with cin- 

 namon and the under tail-coverts arc creamy white. 



Geographical Range. The southern portion of South America ; Tierra 

 del Fuego and Patagonia ; Chili, and north to 20 south latitude on the 

 Pacific coast ; in the interior of the country to about 24 south, but on the 

 Atlantic coast appearing as far north in Eastern Brazil as the region 

 immediately north of Rio de Janeiro. 



On all the journeys which the Princeton naturalists made in Patagonia 

 they encountered this smallest of the carrion hawks, and while it does 

 not appear on the whole to be as numerous as its large congeners, it is a 

 decided feature in the Patagonian bird fauna. 



The birds nest in trees and the breeding season begins in the northern 

 range of the species as early as late September, while in Patagonia the 

 nesting time occurs throughout November. The birds appear to be resi- 

 dent throughout their range, there being abundant records of their occur- 

 rence at all points during every season of the year. 



Sharpe (P. Z. S. 1881, p. 10) gives the following color notes: "Male: 

 Cockle Cove, February 9, 1879. Legs olive-green, claws black; i rides 

 dark grey ; cere grey. 



"Male: Talcahuano, September, 1879. Eyes light brown; legs grey; 

 bill grey and white." 



M. J. Nicoll (Ibis, Jan., 1904, pp. 44-45) says : 



" Iris black ; bill, tarsi, and toes greenish yellow." 



