WATER BIRDS. 



KEY TO FAMILIES. 



GROUP 1. Toes, four; with lobate webs, or webs on sides 



of toes. 



Bill, pointed; feet, placed far back, near tail; underparts, silvery- 

 white: tail, very short. Family COL YMBID.ffi. Grebes. 



See page 35. 



'B^SSP-- 



Forehead, with bare shield; bill, rather short; general color, 

 slaty gray; toes, with lobate webs. 



Family RALLID^. Subfamily FULICIN^. Coots. 



See page 89. 

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