AVES RALLID^. 45 



ish. This color extends backward below the eye to the region of the ear 

 coverts, where it gradually fades into the lead color of the sides of head. 



Throat : White shading into the clear lead color of the foreneck. 



Neck: Above and on the sides like the back, each feather blackish, 

 bordered with sandy buff, the edgings becoming more pronounced and 

 broader as the neck joins the body. Below the neck is lead color, at first 

 clear, then shaded with sandy brown as it joins the breast region. 



Back : Dusky black, each feather broadly margined with sandy buffy 

 brown. Rump and upper tail coverts like the back, but the black area 

 on each feather comparatively less. 



Wing: The scapulars are like the back but the black area on each 

 feather is proportionately less. Wing coverts uniform sandy brown, with 

 a rufescent tinge. Bastard wing, the primary coverts and primaries sooty 

 brown, unmarked ; secondaries of a like color, but with faint white tips 

 and one or more broken white bars, and brownish markings becoming 

 on the inner ones like the back and scapulars in color and pattern. 



Tail : The feathers are much like those of the back in color and pattern, 

 the brown edging preponderating, however, over the dusky brown center 

 of each feather. 



Lower parts : Breast lead color, with a strong suffusion of brown and 

 with grayish white fringes to many of the feathers. Sides and flanks 

 black, each feather strongly barred, and slightly fringed with clear white. 

 Abdomen lead color with sandy buff tips and fringes on each feather. 

 Under tail coverts black, barred and tipped with white. Under wing 

 coverts and axillaries dusky, the coverts broadly tipped and the axillaries 

 both barred and tipped with white. 



This description is based on a specimen, sex not indicated. No. 7800 

 Princeton University collection, taken at Lower Rio Chico, Patagonia, 

 30 March, 1897. This bird is apparently adult. 



The collector's notes describe the iris as "brown." "Upper mandible 

 dark red, lower one bright red ; feet and toes dark purple ; iris reddish 

 brown" (F. Withington). 



Geographical Range. — Argentine Republic, to central Chile and 

 throughout Patagonia. 



The only individual of this species that was secured by the expeditions 

 sent out by Princeton University to Patagonia, has been cited above. 



