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^. Grebes. 



See page 35. 



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

 slaty gray; toes, with lobate webs. 



Family RALLID^E. Subfamily FULICIN^. Coots. 



See page 89. 



