6o8 



PATAGONIAN EXPEDITIONS: ZOOLOGY. 



are ashy white, much like the under tail surface, and barred blackish 

 brown, in strong contrast to the white interspaces. 



Lower parts : Chin, throat and lower neck as described ; the rest of the 

 under surface dull grey, with large white spots, margined generally with 

 brownish edges and forming bars on some of the feathers ; the breast is 

 often shaded with rufous ; the abdomen is distinctly banded with that 

 shade ; the thighs and feathered parts of the legs are tawny rufous or 

 bright cinnamon ; under tail-coverts immaculate white ; under wing- 

 coverts rufous, mottled with darker brown spots ; axillaries barred white 

 and rufous, and with brown edges like the feathers of the breast. There 

 are no field notes that record the color of the eyes, feet and bill. 



FIG. 302. 



Accipiter chilemis. Immature. One-fourth natural size. 



Immature plumage. Head : Forehead, region in front of eye and a 

 rather ill-defined eye-stripe dirty whitish ; crown blackish brown, each 

 feather margined with rufous ; white bases of the occipital feathers con- 

 spicuous ; ear-coverts and sides of face whitish, streaked heavily with 

 dark brown. 



Neck : Nape nearly white, streaked with deep brown, the whole shad- 

 ing into fulvous on the hind neck ; throat and chin white ; lower neck 

 creamy, each feather streaked with deep brown. 



