KEY TO FAMILIES. WATER BIRDS. 



15 



Lores, feathered; tarsus, reticulate (scales rounded) ; wing, more than lliirtci n, inches long; 

 toes, four, the front ones full webbed. 



Family ANATID/E. Subfamily ANSERIN/E. Geese and Brant. 



See page 81. 



tit-eat 1 and Swan. 



Lores, partly hare; tarsus, reticulate (scales rounded) ; size, large; neck, long; wing, over 

 eighteen inches long; plumage, white or gray. Subfamily CYQNIN/E. Swans. 



See page 84. 



GROUP 3. 



Toes, four, toto=palmate ; (front toes, full webbed ;) 

 hind toe, connected with front ones by web. 



L 





Bill, sharp pointed; chin, feathered; toes, four, all connected i>y webs. 



Family PHAETHONT1D/E. Tropic Birds. 



See page 50. 



Bill, stout, but not hooked; chiu, bare; neck, thick; toes, four, all connected by webs. 



Family SULID/B. Gannets. 



See page 51. 



