Source : Webster's Revised Unabridged Dictionary (1913)

Kivikivi \Ki`vi*ki"vi\, Kiwikiwi \Ki`wi*ki"wi\, n.; pl.
   {Kivikivies} (?), {Kiwikiwies}. (Zo["o]l.)
   Any species of Apteryx, esp. {A. australis}; -- so called in
   imitation of its notes. Called also {kiwi}. See {Apteryx}.