Source : Webster's Revised Unabridged Dictionary (1913)

Hoatzin \Ho"at*zin\, n. (Zo["o]l.)
   Same as {Hoazin}.

Source : WordNet®

hoatzin
     n : crested ill-smelling South American bird whose young have
         claws on the first and second digits of the wings [syn: {hoactzin},
          {stinkbird}, {Opisthocomus hoazin}]