NATURAL HISTORY. 



Class II AVES. (Lat. Birds.) 



Order I ACCIPITRES.(Lzt. Hawks.) 



Sub-order I. ACCLPITRES DIURNI. (Lat. Haivks of the day.) 

 Family I. . . Gypaetidsa. (Gr. Tinp a Vulture ; 'Acrof, an Eagle. 

 Vulture-eagle kind.) 



GYPAETUS. 



Barbatus (Lat. bearded), the Bearded Vulture or Lammcrrjcyer. 



BIRDS are immediately distinguished from the Mammalia by 

 their general form, their feathery covering, arid by producing 

 their young enclosed in eggs. 



The different orders of birds are principally known by the 

 character of the claws and beak, examples of which will be 

 seen in the progress of the work. Before we pay attention to 

 any individual species, we will first examine some of the struc- 

 tures common to all birds. 



One of the first great marks of distinction in birds is the 

 wing. This organ is a modification of the arm or forelimb of 

 mammalia, clothed with feathers instead of hair. 



