passeriformes

from WordNet (r) 3.0 (2006)

Passeriformes
    n 1: largest order of birds comprising about half the known
         species; rooks; finches; sparrows; tits; warblers; robins;
         wrens; swallows; etc.; the four suborders are Eurylaimi and
         Tyranni and Menurae and Oscines or Passeres [syn:
         {Passeriformes}, {order Passeriformes}]

from The Collaborative International Dictionary of English v.0.48

Passeriformes \Passeriformes\ prop. n.
   The largest order of birds comprising about half the known
   species: rooks; finches; sparrows; tits; warblers; robins;
   wrens; swallows; etc.; in four suborders: Eurylaimi; Tyranni;
   Menurae; Oscines or Passeres.

   Syn: order Passeriformes.
        [WordNet 1.5]

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