The Collaborative International Dictionary of English v.0.48:

Tucan \Tu*can"\, n. (Zool.)
   The Mexican pocket gopher (Geomys Mexicanus). It resembles
   the common pocket gopher of the Western United States, but is
   larger. Called also tugan, and tuza.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Tuza \Tu"za\, n. (Zool.)
   The tucan.
   [1913 Webster] Twaddell