[1] : The Collaborative International Dictionary of English v.0.48

pintail \pin"tail`\, n.
   1. zool. a northern duck dafila acuta, native of both
      continents. the adult male has a long, tapering tail.
      called also gray duck, piketail, piket-tail,
      spike-tail, split-tail, springtail, sea pheasant,
      and gray widgeon.
      1913 webster

   2. zool. the sharp-tailed grouse of the great plains and
      rocky mountains pediocaetes phasianellus; -- called
      also pintailed grouse, pintailed chicken,
      springtail, and sharptail.
      1913 webster
see also:
dafila acuta gray duck piketail piket-tail spike-tail split-tail 
springtail sea pheasant gray widgeon pediocaetes phasianellus pintailed grouse 
pintailed chicken sharptail 

[2] : The Collaborative International Dictionary of English v.0.48

widgeon \widg"eon\, n. probably from an old french form of f.
   vigeon, vingeon, gingeon; of uncertain origin; cf. l. vipio,
   -onis, a kind of small crane. zool.
   any one of several species of fresh-water ducks, especially
   those belonging to the subgenus mareca, of the genus
   anas. the common european widgeon anas penelope and the
   american widgeon anas americana are the most important
   species. the latter is called also baldhead, baldpate,
   baldface, baldcrown, smoking duck, wheat, duck, and
   whitebelly.
   1913 webster

   bald-faced widgeon, or green-headed widgeon, the american
      widgeon.

   black widgeon, the european tufted duck.

   gray widgeon.
   a the gadwall.
   b the pintail duck.

   great headed widgeon, the poachard.

   pied widgeon.
   a the poachard.
   b the goosander.

   saw-billed widgeon, the merganser.

   sea widgeon. see in the vocabulary.

   spear widgeon, the goosander. prov. eng.

   spoonbilled widgeon, the shoveler.

   white widgeon, the smew.

   wood widgeon, the wood duck.
      1913 webster
see also:
mareca anas anas penelope anas americana baldhead baldpate 
baldface baldcrown smoking duck wheat duck 
whitebelly bald-faced widgeon green-headed widgeon black widgeon gray widgeon 
great headed widgeon pied widgeon saw-billed widgeon sea widgeon spear widgeon 
spoonbilled widgeon white widgeon wood widgeon 

Gray >> G Words
Gray, definition of term: Gray
gray_pag1.html

Widgeon >> W Words
Widgeon, definition of term: Widgeon
widgeon_pag1.html

Gray Wolf >> G Words
Gray Wolf, definition of term: Gray Wolf
gray+wolf_pag1.html

Gray Matter >> G Words
Gray Matter, definition of term: Gray Matter
gray+matter_pag1.html

Gray Goo >> G Words
Gray Goo, definition of term: Gray Goo
gray+goo_pag1.html

Gray Sole >> G Words
Gray Sole, definition of term: Gray Sole
gray+sole_pag1.html