from
The Collaborative International Dictionary of English v.0.48
bustard \bus"tard\ (b[u^]s"t[~e]rd), n. [OF. & Prov. F.
bistarde, F. outarde, from L. avis tarda, lit., slow bird.
--Plin. 10, 22; "proxim[ae] iis sunt, quas Hispania aves
tardas appellat, Gr[ae]cia 'wti`das."] (Zool.)
A bird of the genus {Otis}.
[1913 Webster]
Note: The great or {bearded bustard} ({Otis tarda}) is the
largest game bird in Europe. It inhabits the temperate
regions of Europe and Asia, and was formerly common in
Great Britain. The {little bustard} ({Otis tetrax})
inhabits eastern Europe and Morocco. Many other species
are known in Asia and Africa.
[1913 Webster]