avian

from WordNet (r) 3.0 (2006)

avian
    adj 1: pertaining to or characteristic of birds

from The Collaborative International Dictionary of English v.0.48

Avian \A"vi*an\, a.
   Of or instrument to birds.
   [1913 Webster] avianise

from Moby Thesaurus II by Grady Ward, 1.0

18 Moby Thesaurus words for "avian":
      altricial, anserine, anserous, aquiline, avicular, birdlike, birdy,
      columbine, dovelike, goosy, hawklike, nesting, nidicolous,
      nidificant, oscine, passerine, psittacine, rasorial

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