THE BIRDS OF ILLINOIS AND WISCONSIN, 



WATER BIRDS. 



ORDER PYGOPODES. 



DIVING BIRDS. 

 Suborder COLYMBI. 



Family COLYMBID^. Grebes. 



Holboell's Grebe. Pied-billed Grebe. 



The Grebes comprise a small cosmopolitan family, numbering 

 about 25 species. They are lobe-footed water birds and dive with 

 great dexterity, often remaining under water for a considerable time 

 with only the bill and a small portion of the head protruding above 

 the surface. They feed principally upon small fish. Half a dozen 

 species are found in North America, of which the following are 

 accredited to Illinois and Wisconsin : 



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