Source : Webster's Revised Unabridged Dictionary (1913)

Chaja \Cha"ja\, n. [Native name.] (Zo["o]l.)
   The crested screamer of Brazil ({Palamedea, or Chauna,
   chavaria}), so called in imitation of its notes; -- called
   also {chauna}, and {faithful kamichi}. It is often
   domesticated and is useful in guarding other poultry. See
   {Kamichi}.