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.

Source: Webster's Revised Unabridged Dictionary (1913)