Source : Webster's Revised Unabridged Dictionary (1913)

Fowl \Fowl\, v. i. [imp. & p. p. {Fowled}; p. pr. & vb. n.
   {Fowling}.]
   To catch or kill wild fowl, for game or food, as by shooting,
   or by decoys, nets, etc.

         Such persons as may lawfully hunt, fish, or fowl.
                                                  --Blackstone.

   {Fowling piece}, a light gun with smooth bore, adapted for
      the use of small shot in killing birds or small
      quadrupeds.

Source : WordNet®

fowling piece
     n : a light shotgun used for fowling