The Collaborative International Dictionary of English v.0.48:

Cotinga \Co*tin"ga\ (k[-o]*t[-e][ng]"g[.a]), n. [Native South
   American name.] (Zool.)
   A bird of the family Cotingid[ae], including numerous
   bright-colored South American species; -- called also
   chatterers.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cotinga
    n 1: passerine bird of New World tropics [syn: cotinga,
         chatterer]