Word Study
cockateel
CIDE DICTIONARY
cockateel, n.
A small gray and white Australian parrot (Leptolophus hollandicus , formerly Calopsitta Novæ-Hollandiæ ) with a prominent crest; the male has bright yellow cheeks and crest, but the female has only a pale yellow in the face; -- it is so called from its note. [1913 Webster]
For further exploring for "cockateel" in Webster Dictionary Online