KEY TO FAMILIES. 



WATER BIRDS. 



15 



Lores, feathered; tarsus, reticulate (scales rounded) ; wing, more, thun thirteen inches lung; 

 toes, four, the front ones full webbed. 



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



See l^age SI. 



Gc'u.se ami Swan. 



Lores, partly bare; tarsus, reticulate (scales rounded) ; size, large; ueek, long; wing, over 

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



See page 84. 



GROUP 3. 



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

 hind toe, connected with front ones by web. 



Bill, sharp pointed ; chin, feathered; toes, four, all connected oy webs. 



Family PHAETHONTID/C. Tropic Birds. 



See page 50. 



^ 



' '^'-^^ ~ ] 



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



' Family SULID/E. Oannets. 



See page 51. 



