SYSTEMATIC INDEX 



XXlll. 



ORDER ANSEBES. 



FAMILY ANATID^. 



GREY LAG-GOOSE 



WHITE-FRONTED GOOSE 



BEAN-GOOSE 



PINK-FOOTED GOOSE ... ... 



SNOW-GOOSE 

 RED-BREASTED GOOSE 

 HEUNACLE- GOOSE ..,/ 

 BRENT GOOSE ... 



CANADA GOOSE 



EGYPTIAN GOOSE 



SPUR-WINGED GOOSE ... 



WHOOPER SWAN 



BEWICK'S SWAN 



MUTE SWAN 

 COMMON SHELD-DUCK 



RUDDY SHELD-DUCK 



MALLARD 



GAD WALL 



SHOVELER 



PINTAIL 



TEAL 



AMERICAN GREEN-WINGED TEAL 



BLUE-WINGED TEAL 



GARGANEY 



WIGEON 



AMERICAN WIGEON 



RED-CRESTED POCHARD 



POCHARD 



BAER'S POCHARD 



FERRUGINOUS DUCK 



TUFTED DUCK 



SCAUP-DUCK 



GOLDEN-EYE ... 



BUFFEL-HEADED DUCK 



LONG- TAILED DUCK 



HARLEQUIN DUCK 



EIDER DUCK ... 



PACIFIC EIDER 



KlNG-ElDER ... 



STELLER'S EIDER 



COMMON SCOTER 



VELVET-SCOTER 



SURF- SCOTER 



GOOSANDER 



RED-BREASTED MERGANSER ... 



SMEW 



HOODED MERGANSER . . 



PAGE 



Anser cinereus ... ... ... 55 



Anser albifrons ... ... ... 58 



Anser segetwin ... ... ... 60 



Anser bracliyrliynclms... ... 62 



Chen liyperboreus ... ... 64 



Bernicla ruficollis 67 



Bernicla leucopsis ... ... 69 



Bernicla brenta ... ... ... 71 



Bernicla canadensis 75 



Chenalopex cegyptiaca ... ... 76 



Plectropterus gambensis ... 76 



Cygnus musicus... ... ... 77 



Cygnus bewicki ... ... ... 80 



Cygnus olor ... ... ... 83 



Tadorna cornuta ... ... 86 



Tadorna casarca ... ... 89 



Anas boscas 91 



Anas strepera ... ... ... 95 



Spatula clypeata ... ... 97 



Dafila acuta ... ... ... 99 



Nettion crecca 102 



Nettion carolinense ... ... 106 



Querquedula discors ... ... 107 



Querquedula circia 108 



Mareca penelope... ... ... Ill 



Mareca americana ... ... 116 



Netta rufina 117 



Fuligula ferina 118 



Nyroca baeri ... ... ... 571 



Fuligula nyroca... ... ... 121 



Fuligula cristata 123 



Fuligula marila ... ... 126 



Clangula glaucion ... ... 129 



Clangula albeola ... ... 132 



Harelda glacialis 133 



Cosmonetta histrionica ... 136 



Somateria mollissima ... ... 137 



Somateria-v-nigrum ... ... 571 



Somateria spectabilis ... ... 140 



Somateria stelleri ... ... 142 



(Edemia nigra ... ... ... 143 



(Edemia fusca 146 



(Edemia perspicillata ... ... 148 



Merc) us merganser ... ... 151 



Mergus serrator 154 



Mergus albellus ... ... ... 157 



Mergus cucullatus ... ... 159 



