The bird order Ciconiiformes includes the single family Ciconiidae or Storks. 
Previously Ciconiiformes included a number of other families have been moved to other orders:
- herons and bitterns (Ardeidae), 
- the shoebill (sole species of the Balaenicipitidae), 
- the hammerhead (sole species of the Scopidae), 
- typical storks and wood storks (Ciconiidae), 
- ibis and spoonbills (Threskiornithidae), 
- and flamingos (Phoenicopteridae) by some authorities.