The Collaborative International Dictionary of English v.0.48:

Ciconiiformes \Ciconiiformes\ n.
   an order of chiefly tropical marsh-dwelling fish-eating
   wading birds with long legs and bills and (except for
   flamingos) unwebbed feet, including the herons; storks;
   spoonbills; flamingos; and ibises.

   Syn: order Ciconiiformes.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Ciconiiformes
    n 1: order of chiefly tropical marsh-dwelling fish-eating wading
         birds with long legs and bills and (except for flamingos)
         unwebbed feet: herons; storks; spoonbills; flamingos;
         ibises [syn: Ciconiiformes, order Ciconiiformes]