334 
COMPARATIVE ZOOLOGY. 
having wings for prolonged flight, and slender legs, fitted 
rather for an arboreal life, with toes not united, and the 
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; and from Parrots, 
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 (Aquila chrysaetos). North America and Europe. 
