334 



COMPARATIVE ZOOLOGY. 



having wings for prolonged flight, and slender legs, fitted 

 rather for an arboreal life, with toes not united, and tlic 

 hind toe on a level with the rest. 



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

 Birds, except Parrots, in having a 

 strongly hooked bill and a waxy- 

 membrane (cere) at the base of the 

 upper mandible ; arid from Parrots, 



FIG. 317 Barn-owl (Strix flavin- 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 Ea^le (Aquila chrysaetos). North America and Europe, 



