﻿16 
  

  

  NORTH 
  AMERICAN 
  DUCKS, 
  GEESE, 
  AV.D 
  SWANS. 
  

  

  forms; 
  but 
  the 
  following 
  7 
  of 
  these 
  do 
  not 
  range 
  so 
  far 
  north 
  as 
  the 
  

   United 
  States: 
  

  

  Species 
  occurring 
  in 
  Central 
  America, 
  West 
  Indies, 
  or 
  Mexico, 
  but 
  not 
  known 
  

   to 
  reach 
  the 
  united 
  states. 
  

  

  Muscovy 
  duck, 
  Cairina 
  moschaia. 
  

   Diaz 
  duck, 
  Anas 
  diazi. 
  

   Abert 
  duck, 
  Anas 
  aberti. 
  

   Bahama 
  duck, 
  Pcecilonetta 
  bahamensis. 
  

   White-faced 
  tree-duck, 
  Dendrocygna 
  vidu- 
  

   ata. 
  

  

  Whistling 
  duck, 
  Dendrocygna 
  arborea. 
  

   Southern 
  red-billed 
  tree-duck, 
  Dendro- 
  

   cygna 
  discolor. 
  

  

  There 
  remain 
  61 
  species 
  and 
  subspecies 
  that 
  occur 
  in 
  the 
  United 
  

   States 
  and 
  northward, 
  but 
  11 
  of 
  these 
  are 
  only 
  accidental 
  in 
  North 
  

   America. 
  One 
  of 
  them, 
  JIareca 
  penelope, 
  has 
  been 
  recorded 
  about 
  80 
  

   times 
  in 
  various 
  parts 
  of 
  the 
  United 
  States, 
  Canada, 
  and 
  Greenland. 
  

   Nettion 
  crecca 
  has 
  been 
  captured 
  about 
  twenty 
  times 
  in 
  the 
  same 
  

   regions. 
  JYetta 
  rufina 
  has 
  been 
  found 
  only 
  once 
  — 
  in 
  New 
  York 
  market. 
  

   The 
  other 
  7 
  occur 
  more 
  or 
  less 
  regularly 
  in 
  Greenland, 
  but 
  are 
  not 
  

   known 
  on 
  the 
  mainland 
  of 
  North 
  America. 
  These 
  11 
  species 
  are: 
  

  

  European 
  Species 
  occurring 
  in 
  North 
  America 
  as 
  Stragglers. 
  

  

  White-fronted 
  goose, 
  Anser 
  albifrons. 
  

   Bean 
  goose, 
  Anser 
  fabalis. 
  

   Brant, 
  Branta 
  bernicla. 
  

   Barnacle 
  goose, 
  Branta 
  leucopsis. 
  

   Whooping 
  swan, 
  Olor 
  cygnus. 
  

  

  European 
  smew, 
  Mergus 
  albellus. 
  

   Widgeon, 
  a 
  Mareca 
  penelope. 
  

   European 
  teal,« 
  Nettion 
  crecca. 
  

   Ruddy 
  sheldrake, 
  Casarca 
  casarca. 
  

   Bufous-crested 
  duck, 
  Netta 
  rufina. 
  

   Velvet 
  scoter, 
  Oidemia 
  fusca. 
  

  

  Four 
  species 
  of 
  eider 
  ducks 
  and 
  the 
  emperor 
  goose 
  are 
  so 
  de- 
  

   cidedly 
  boreal 
  that 
  they 
  do 
  not 
  come 
  south 
  to 
  the 
  United 
  States 
  

   even 
  in 
  winter. 
  These 
  are: 
  

  

  Species 
  that 
  Breed 
  and 
  Winter 
  North 
  of 
  the 
  United 
  States. 
  

  

  Pacific 
  eider, 
  Somateria 
  v-nigra. 
  

   Emperor 
  goose, 
  Philacte 
  canagica. 
  

   cidental 
  in 
  California. 
  ) 
  

  

  (Ac- 
  

  

  Steller 
  eider, 
  Polysticta 
  stelleri. 
  

   Spectacled 
  eider, 
  Arctonetta 
  fischeri. 
  

   Northern 
  eider, 
  Somateria 
  mollissima 
  bore- 
  

   alis 
  (rare 
  on 
  the 
  New 
  England 
  coast). 
  

  

  Deducting 
  these, 
  there 
  are 
  51 
  species 
  which 
  regularly 
  visit 
  the 
  

   United 
  States 
  during 
  some 
  portion 
  of 
  the 
  year. 
  Many 
  of 
  these, 
  how- 
  

   ever, 
  spend 
  the 
  breeding 
  season 
  north 
  of 
  the 
  United 
  States, 
  and 
  come 
  

   south 
  only 
  in 
  the 
  winter 
  season. 
  Among 
  these 
  last 
  are 
  included 
  both 
  

   species 
  of 
  swans 
  and 
  most 
  of 
  the 
  geese. 
  Several 
  species 
  of 
  ducks 
  

   select 
  Canada 
  as 
  their 
  principal 
  breeding 
  ground, 
  but 
  a 
  few 
  indi- 
  

   viduals 
  remain 
  to 
  breed 
  in 
  the 
  northern 
  part 
  of 
  the 
  United 
  States 
  or 
  

   in 
  the 
  mountains 
  of 
  the 
  West. 
  These 
  are 
  the 
  scaup 
  (Aythya 
  marila), 
  

   American 
  golden-eye 
  ( 
  Clangula 
  clangula 
  americana), 
  Barrow 
  golden- 
  

   eye 
  {Clangula 
  islandica), 
  buffle-head 
  (Charit07ietta 
  albeola), 
  harlequin 
  

  

  « 
  Occurs 
  in 
  the 
  United 
  States; 
  Netta 
  rufina 
  but 
  once. 
  

  

  