资料来源 : Webster's Revised Unabridged Dictionary (1913)

Whistling \Whis"tling\,
   a. & n. from {Whistle}, v.

   {Whistling buoy}. (Naut.) See under {Buoy}.

   {Whistling coot} (Zo["o]l.), the American black scoter.

   {Whistling Dick}. (Zo["o]l.)
   (a) An Australian shrike thrush ({Colluricincla Selbii}).
   (b) The song thrush. [Prov. Eng.]

   {Whistling duck}. (Zo["o]l.)
   (a) The golden-eye.
   (b) A tree duck.

   {Whistling eagle} (Zo["o]l.), a small Australian eagle
      ({Haliastur sphenurus}); -- called also {whistling hawk},
      and {little swamp eagle}.

   {Whistling plover}. (Zo["o]l.)
   (a) The golden plover.
   (b) The black-bellied, or gray, plover.

   {Whistling snipe} (Zo["o]l.), the American woodcock.

   {Whistling swan}. (Zo["o]l.)
   (a) The European whooper swan; -- called also {wild swan},
       and {elk}.
   (b) An American swan ({Olor columbianus}). See under {Swan}.
       

   {Whistling teal} (Zo["o]l.), a tree duck, as {Dendrocygna
      awsuree} of India.

   {Whistling thrush}. (Zo["o]l.)
   (a) Any one of several species of singing birds of the genus
       {Myiophonus}, native of Asia, Australia, and the East
       Indies. They are generally black, glossed with blue, and
       have a patch of bright blue on each shoulder. Their note
       is a loud and clear whistle.
   (b) The song thrush. [Prov. Eng.]

资料来源 : WordNet®

whistling swan
     n : North American subspecies of tundra swan having a soft
         whistling note [syn: {Cygnus columbianus columbianus}]