white-wing

Scoter \Sco"ter\, n. [Cf. Prov. E. scote to plow up.] (Zool.)
   Any one of several species of northern sea ducks of the genus
   {Oidemia}.
   [1913 Webster]

   Note: The European scoters are {Oidemia nigra}, called also
         {black duck}, {black diver}, {surf duck}; and the
         velvet, or double, scoter ({Oidemia fusca}). The common
         American species are the velvet, or white-winged,
         scoter ({Oidemia Deglandi}), called also {velvet duck},
         {white-wing}, {bull coot}, {white-winged coot}; the
         black scoter ({Oidemia Americana}), called also {black
         coot}, {butterbill}, {coppernose}; and the surf scoter,
         or surf duck ({Oidemia perspicillata}), called also
         {baldpate}, {skunkhead}, {horsehead}, {patchhead},
         {pishaug}, and {spectacled coot}. These birds are
         collectively called also {coots}. The females and young
         are called {gray coots}, and {brown coots}.
         [1913 Webster]
    

Whitewing \White"wing`\, n. (Zool.)
   (a) The chaffinch; -- so called from the white bands on the
       wing.
   (b) The velvet duck.
       [1913 Webster]