ORDKR PYGOPODKS. 



DIVING BIRDS. 



SUBORDER PODICIPIDES. GREBES. 

 FAMILY PODICIPID^:. GREBES. 



Six species of Grebes occur In North America. Their toes are lobe webbed uiul the legs 

 are placed far back, rendering walking dilllcult. They feed principally on Huh. About 

 Miirty-two species are known throughout the world. 



GENUS COLYMBUS LINN. 

 SUIKJKNUS COLYMBUS LINN. 



llolbocll'H (Jrebe. 



Pied-billed Grebe. 



(131) 



