334 



COMPARATIVE ZOOLOGY. 



having wings for prolonged flight, and slender legs, fitted 



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



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 



upjjer mandible ; and from Parrots, 



FiH. 31T — Barn-owl {Strix fiam- Fig. 318. 

 mea). Both hemispheres. 



-Fish -hawk {Pandion Carolinensio). 

 United States. 



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

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

 robust ; and the w^ings are of considerable size, adapted 



Pig. 319.— Golden Eagle (A quUa chiijauetos). North America and Europe. 



