From The Collaborative International Dictionary of English v.0.48 [gcide]:
Kivikivi \Ki`vi*ki"vi\, Kiwikiwi \Ki`wi*ki"wi\, n.; pl.
Kivikivies (?), Kiwikiwies. (Zool.)
Any species of Apteryx, esp. Apteryx australis; -- so
called in imitation of its notes. More commonly called
kiwi. See Apteryx.
[1913 Webster]