KEY TO FAMILIES. 



WATER BIRDS. 

 GROUP 1. 

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



Bill, pointed ; fept, pliioi'd fni- buck, near tail ; nnderparts, silvery white ; tail, very short. 



Family PODICIPID/E. Grebes. 



See pa;,'e 26. 



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

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



See i^age 100. 



