The Collaborative International Dictionary of English v.0.48:

myna \my"na\, mynah \my"nah\, n. [See Mino bird.] (Zool.)
   Any one of numerous species of Asiatic starlings of the
   genera Acridotheres, Sturnopastor, Sturnia, Gracula,
   and allied genera. In habits they resemble the European
   starlings, and like them are often caged and taught to talk.
   See Hill myna, under Hill, and Mino bird. [Spelt also
   mynah.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

myna
    n 1: tropical Asian starlings [syn: myna, mynah, mina,
         minah, myna bird, mynah bird]