The Collaborative International Dictionary of English v.0.48:

Kaka \Ka"ka\, n. [Maori kaka a parrot; -- so named from its
   note.] (Zool.)
   A New Zealand parrot of the genus Nestor, especially the
   brown parrot (Nestor meridionalis).
   [1913 Webster]

   Note: The mountain kaka, or kea (Nestor notabilis), is
         remarkable for having recently acquired carnivorous
         habits. It attacks and kills lambs and pigs, sometimes
         doing great damage.
         [1913 Webster]

   Night kaka. (Zool.) The kakapo.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Kakapo \Ka`ka*po"\, n. (Zool.)
   A singular nocturnal parrot (Strigops habroptilus), native
   of New Zealand. It lives in holes during the day, but is
   active at night. It resembles an owl in its colors and
   general appearance. It has large wings, but can fly only a
   short distance. Called also owl parrot, night parrot, and
   night kaka.
   [1913 Webster]