The Collaborative International Dictionary of English v.0.48:
Bird \Bird\ (b[~e]rd), n. [OE. brid, bred, bird, young bird,
bird, AS. bridd young bird. [root]92.]
1. Orig., a chicken; the young of a fowl; a young eaglet; a
nestling; and hence, a feathered flying animal (see 2).
That ungentle gull, the cuckoo's bird. --Shak.
The brydds [birds] of the aier have nestes.
2. (Zool.) A warm-blooded, feathered vertebrate provided with
wings. See Aves.
3. Specifically, among sportsmen, a game bird.
4. Fig.: A girl; a maiden.
And by my word! the bonny bird
In danger shall not tarry. --Campbell.
Arabian bird, the phenix.
Bird of Jove, the eagle.
Bird of Juno, the peacock.
Bird louse (Zool.), a wingless insect of the group
Mallophaga, of which the genera and species are very
numerous and mostly parasitic upon birds. -- Bird mite
(Zool.), a small mite (genera Dermanyssus,
Dermaleichus and allies) parasitic upon birds. The
species are numerous.
Bird of passage, a migratory bird.
Bird spider (Zool.), a very large South American spider
(Mygale avicularia). It is said sometimes to capture and
kill small birds.
Bird tick (Zool.), a dipterous insect parasitic upon birds
(genus Ornithomyia, and allies), usually winged.