KEY TO FAMILIES. 



WATER BIRDS. 

 GROUP 1. 



Toes, four, with lobate webs, or webs on sides of toes. 



Bill, pointed; fWf, placed far back, near tail; underparts, silvery white; tail, very short. 



Family PODICIPID/E. Grebes. 



See pa jje 2f>. 



Forehead, with hare shield; bill, rather short; general color, slaty gray; toes, with 

 lobate webs. Family RALLID/E. Subfamily FULICIN/E. Coots. 



See page 100. 



