334 



COMPARATIVE ZOOLOGY. 



The wings are adapted for rapid or long flight ; and they 

 hop, rather than walk, on the ground. 170 They always 

 live in pairs ; and the young are hatched helpless. 



8. Mwptores, or Birds of Prey, differ from all other 



Fig. 317.— Barn-owl (Strix flam- Fig. 318. — Fish - hawk (Pandion Carolinensis). 

 mea). Both hemispheres. United States. 



in having three toes in front and one behind. The toes 

 are armed with long, strong, crooked talons; the legs are 

 robust ; and the wings are of considerable size, adapted 



Fig. 319.— Golden Eagle (Aquilu chrysaetos). North America and Europe. 



