292 BUBO. 



BUBO, generic characters. Bill short, strong, 

 and bending from the base, edges of the man- 

 dible slightly sinuated ; nostrils large, oval ; 

 facial disk incomplete above the eyes ; head 

 furnished with egrets ; conchal opening small, 

 no operculum ? wings rather short, concave, 

 third and fourth quills longest ; legs and toes 

 feathered ; claws long, sharp. 



