VERTEBRATES: BIRDS. 



covered with short, brown fur. It is less than two feet 

 long, lives about ponds and streams, and digs burrows 

 in the banks. Its young are born from eggs which 

 it laj's in its burrows. The only other member of 

 this group, the Spiny Ant-eater of New Guinea, lays 

 an egg which it carries in its pouch until hatched. 



BIRDS, 



Of all animals, perhaps, none are more interesting to 

 both }-oung and old than Birds. Their presence in the 

 fields and hedges, the groves and forests, their beau- 

 tiful and splendid colors, their sweet songs, and their 

 curious and wonderful habits, charm and delight all. 



Birds are egg-laying vertebrates which are co\'ered 

 \\-itli feathers, furnished with a bill, and fitted for 

 flight, — their form as well as their structure being 

 adapted for eas\- and rapid movement through the 



Crown. 



Foieheati. 

 (3\ V^.- Nostril. 



Iiitevior toe. 

 -Midillc 

 ■ Extei-ior " 



Showing the names of some of the principal parts of a Bird. 



