The Collaborative International Dictionary of English v.0.48:

Oreortyx \Oreortyx\ prop. n.
   A genus of birds including the mountain quail of the western
   U. S.

   Syn: genus Oreortyx.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Oreortyx
    n 1: mountain quail of western United States [syn: Oreortyx,
         genus Oreortyx]