A young bird which has just developed its flight feathers (notably wings).
An insect that has just fledged, i.e. undergone its final moult to become an adult or imago.
An immature, naïve or inexperienced person.
Emergent or rising.
Untried or inexperienced.
The house sparrow, Passer domesticus; a small bird with a short bill, and brown, white and gray feathers.
A member of the family Passeridae, comprising small Old World songbirds.
A member of the family Emberizidae, comprising small New World songbirds.
Generically, any small, nondescript bird.
A quick-witted, lively person.