The Collaborative International Dictionary of English v.0.48:

Goura \Gou"ra\, n. (Zool.)
   One of several species of large, crested ground pigeons of
   the genus Goura, inhabiting New Guinea and adjacent
   islands. The Queen Victoria pigeon (Goura Victoria) and the
   crowned pigeon (G. coronata) are among the best known
   species.
   [1913 Webster]