VEKTEBKATA. 



331 



Examples are 



and feed on Fishes, Mollusks, and Insects, 

 the Cormorants, Pelicans, and Gaimets. 



4. LameUirostres, or Ducks, have a heavy body, moder- 

 ate wings, short tail, flattened bill, covered by a soft skin. 



f 



Pis. 311. Wild Duck (Anas boschas). North America. 



with ridges along the edges. Diet more commonly vege- 

 tarian than animal. The majority inhabit fresh water- 

 as the Ducks, Geese, Swans, and Flamingoes. 



B. TERRESTRIAL 



BIRDS. This group * /7// 



exhibits great diver- 

 sity of structure ; but 

 all agree in being es- 

 pecially terrestrial in 

 habit, spending most 

 of the time on the 

 ground, not on trees 

 or the water al- 

 though many oi them \ 



fly and SWim Well. FM>. 312.-Saudpiper (Tringa, hypolaica). England. 



