AVES TYTODIN^. 



717 



Bill : Pale yellowish white (Hatcher). 



Iris: Dull blue (Hatcher). 



FiG.je/. 



Tyto pcrlata. Feathering of foot. Natural size. 



Feet: Feathered except on the upper surface of the toes, where there 

 are sparse white hairy plumules. 



Adult female, 7884 P. U. O. C. Upper waters Rio Chico de Santa 

 Cruz, Pacific Slope, Cordillera, Patagonia, 14 March, 1897, J. B. Hatcher. 

 Similar to the male, but a little larger. The colors throughout are some- 

 what emphasized ; there is more silver-grey wash on the head, back and 

 wings ; the lower surface is almost entirely washed with buffy, and the 

 terminal arrow-shaped markings of deep brown prevail on most of the 

 feathers, extending to the exterior of the thighs and to the belly proper; 

 the vent and lower tail-coverts immaculate; "eye dull blue; beak pale 

 yellow" (Hatcher). 



