57 AYTHYA VALLISNERIA (WiLS.;. 



Canvas-back Duck. 



58 AYTHYA MARILA NEARCTICA Stejx. 



American Scaup Duck. Blue-bill. Black Head. 



59 AYTHYA AFFINIS (Eyt.). 



Lesser Scaup Duck. Blue-bill. Black Head. 



60 AYTHYA COLLARIS (DoNOV.). 



Ring-necked Duck. 



CI GLAUCIONETTA CLANGULA AMERICANA (Bonap.). 

 American Golden-eye Duck. Whistler. 



62 CHARITONETTA ALBEOLA (Linn.). 



Buffle-head Duck. 



63 CLANGULA HYEMALIS (Linn.). 



Old Squaw, or Long-tailed Duck. 



64 HISTRIONICUS HISTRIONICUS (Linn.). 



Harlequin Duck. 



65 OIDEMIA AMERICANA Sw. and Rich. 



American Scoter Duck. 



66 OIDEMIA DEGLANDI Bonap. 



White-winged Scoter Duck. 

 White-winged Coot. 



67 OIDEMIA PERSPICILLATA (Linn.). 



Surf Scoter Duck. 

 Skunk Head " Coot." 



68 ERISMATURA RUBIDA (Wils.). 



Ruddy Duck. 



69 CHEN HYPERBOREA NIVALIS (Forst.). 



Greater Snow Goose. 



70 CHEN C.«:RULESCENS (Linn.). 



Blue Goose. 



71 BRANTA CANADENSIS (LiNN.). 



Canada Goose. 



72 BRANTA BERNICLA (Linn.). 



Brant. 



73 OLOR COLUMBIANUS (Obd.). 



Whistling Swan. 



