74 CLASS AVES. 



We may keep the name of 



Howlers, (Ulula, Cuv.) 



For the species which have the beak and the ears of 

 the last division_, but not their crests. We have none 

 of them in France, but they are found to the north in 

 both continents ; as, for example, 



The Great gray Howler of Sweden. {St. litturata, Retzius.) 



Nearly as large as a great-horned owl ; mixed with 

 gray and brown ; above whitish, with longitudinal 

 gray-brown spots beneath. It inhabits the mountains 

 in the north of Sweden. 



The St. laponica, Retz ; not St. litturata^ which is 

 the Hawk Owl. 



The Howling Owl of Canada. {St. nebulosa, Gra.) 

 Wilson, A. O. t. 33, f. 2. 



Rather less than the last ; the neck and chest barred 

 across brown and whitish; the back brown, with 

 whitish spots ; the belly whitish, with brown meshes ; 

 tail longer than the wings. Europe and North Ame- 

 rica. 



Strix, Savigny. 



Have the ears as big as those of the eared owls, and 

 provided with an opercule, which is still larger than 

 that of those species ; but their elongated beak bends 

 only towards the end, while in all the other subgenera 

 it is arched from the point. It is without crests ; the 

 tarsi are feathered, but they have nothing but hair on 

 the toes. The mask formed by the fringed feathers 



