Source : Webster's Revised Unabridged Dictionary (1913)

Impeyan pheasant \Im"pey*an pheas"ant\ [From Lady Impey, who
   attempted to naturalize the bird in England.] (Zo["o]l.)
   An Indian crested pheasant of the genus {Lophophorus}.
   Several species are known. Called also {monaul}, {monal}.

   Note: They are remarkable for the bright color and brilliant
         matallic hues of their plumage. The best known species
         ({L. Impeyanus}) has the neck of a brilliant metallic
         red, changing to golden yellow in certain lights.