The Collaborative International Dictionary of English v.0.48:

honeycreeper \honeycreeper\, honey creeper \honey creeper\n.
   1. Any of a number of small to medium-sized finches of the
      Hawaiian islands belonging to the subfamily Drepanidae.

   Syn: Hawaiian honeycreeper.
        [WordNet 1.5]

   2. any of numerous species of small, bright, colored,
      passerine birds of the family C[oe]rebid[ae], related to
      the tanagers and wood warblers, abundant in Central and
      South America; they are songbirds with a curved bill for
      sucking nectar.
      [1913 Webster + WordNet 1.5]

WordNet (r) 3.0 (2006):

honeycreeper
    n 1: small to medium-sized finches of the Hawaiian islands [syn:
         honeycreeper, Hawaiian honeycreeper]
    2: small bright-colored tropical American songbird with a curved
       bill for sucking nectar