WATER BIRDS. 



KEY TO THE SPECIES. 



Family COLYMBID^. The Grebes. 



Special Characters: Bill, straight and pointed; toes, four, with 

 lobate webs; hind toe elevated above the rest; tail feathers appar- 

 ently wanting; legs placed far back. 



Grebes. 



Toes, four; three in front, one behind, with lobate webs. 



PodLymbus 

 podiceps. 



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