DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Water cock \Wa"ter cock`\ (Zool.)
      A large gallinule (Gallicrex cristatus) native of
      Australia, India, and the East Indies. In the breeding season
      the male is black and has a fleshy red caruncle, or horn, on
      the top of its head. Called also kora.
      [1913 Webster]