Aves. 



223 



so that it appears to be covered with hair, and the nos- 

 trils open at the tip of the long beak. The Ratitae are 

 " overgrown degenerate birds that were once on the right 

 road for becoming flying fowl, but through greediness and 



FIG. 130. SOUTH AMERICAN OSTRICH. 



From Kingsley's Zoology. 



idleness never reached the 'goal,' went back, indeed, and lost 

 their sternal keel, and almost lost their unexercised wings" 

 (Parker). 



DIVISION II. 



This division includes all flying birds. All of the birds 

 in this part of the world are carinate. The breastbone 



