Open English Wordnet
Nouns
(n)Passeriformes, order Passeriformeslargest order of birds comprising about half the known species; rooks; finches; sparrows; tits; warblers; robins; wrens; largest order of birds comprising about half the known species; rooks; finches; sparrows; tits; warblers; robins; wrens; swallows (Passeriformes)