2 Ornithology a perching bird of an advanced group distinguished by having the muscles of the syrinx attached to the bronchial semi-rings; an oscine passerine.
Suborder Oscines, order Passeriformes; in Europe ‘songbird’ is effectively synonymous with ‘passerine’ or ‘perching bird’.
3 informal a female singer.
songbird in other Oxford dictionaries
Definition of songbird in the US English dictionary
