Hirundo rustica, the most widespread species of swallow in the world; a distinctive passerine bird with blue upperparts, a long, deeply forked tail and curved, pointed wings, is found in Europe, Asia, Africa and the Americas.
A member of the family Passeridae, comprising small Old World songbirds.
The house sparrow, Passer domesticus; a small bird with a short bill, and brown, white and gray feathers.
A member of the family Emberizidae, comprising small New World songbirds.
Generically, any small, nondescript bird.
A quick-witted, lively person.