Source : Webster's Revised Unabridged Dictionary (1913)

Kaka \Ka"ka\, n. [Maori kaka a parrot; -- so named from its
   note.] (Zo["o]l.)
   A New Zealand parrot of the genus {Nestor}, especially the
   {brown parrot} ({Nestor meridionalis}).

   Note: The {mountain kaka}, or {kea} ({N. notabilis}), is
         remarkable for having recently acquired carnivorous
         habits. It attacks and kills lambs and pigs, sometimes
         doing great damage.

   {Night kaka}. (Zo["o]l.) The kakapo.