KEY TO FA3IILIES. WATER BIRDS. 



15 



Lores, feathered; tarsus, reticulate (scales rounded) ; \viii«^, more than thirteen inches long ; 

 toes, four, the frout ones full wehhed. 



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



See page 81. 



lieese and Swai 



Lores, partly bare; tarsus, reticulate (scales rounded) ; size, lar<je; neck, loii>r; wintr, over 

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



See page S4. 



GROUP 3. 



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

 hind toe, connected with front ones by web. 



Bill, sharp poiutt'd; chin, tcalhcifd ; toes, t'our, mU coiiiicrlril ii\ wi-lis. 



Family PHAH I HON TID/E. Tropic Birds. 

 See page 60. 



W^-i- 



>/ 



Vv. 



^*^ 



Hill, slotii, ImiI II.. I liMuUcd ; cliiii, li:i 



iiicU, thuU; loos, four, all connected hy webs. 



Family SULID/C. Gannets. 



Sec pa^O f)!. 



