herodiones

from The Century Dictionary.

• An order of birds, the altricial desmognathous grallatores, or herons, storks, ibises, spoonbills, and their allies, corresponding to Herodii in a broad sense, or to Pelargomorphæ.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) A division of wading birds, including the herons, storks, and allied forms. Called also Herodii.