ornithological

from WordNet (r) 3.0 (2006)

ornithological
    adj 1: of or relating to ornithology; "her ornithological
           interests"

from The Collaborative International Dictionary of English v.0.48

Ornithologic \Or`ni*tho*log"ic\, Ornithological
\Or`ni*tho*log"ic*al\, a. [Cf. F. ornithologique.]
   Of or pertaining to ornithology; as, her ornithological
   interests.
   [1913 Webster]