ULULA. 



261 



capable of entirely closing the conchal opening. 

 The rudiment of a lobe on the upper mandible is 

 also important. The habits of the birds which 

 we know as composing this genus are strictly 

 arboreal, they live in woods, breed on trees, and 

 seldom make excursions to the open country in 

 search for prey. It appears to be an American 

 and European form ; the allied birds we have seen 

 from South Africa differ materially in the form of 

 the ear, though in other proportions of the parts 

 they more nearly agree. 



Tawny Owl. 



