#heron  gray or white wading bird with long neck and long legs and (usually) long bill
  supertype:  #wading_bird__wader  any of many long-legged birds that wade in water in search of food
  member of:  #family_Ardeidae
  subtype:  #great_blue_heron__Ardea_herodius  large American heron having bluish-gray plumage
  subtype:  #Ardea_occidentalis__great_white_heron__greatwhiteheron  large white heron of Florida and the Florida Keys
  subtype:  #egret  any of various usually white herons having long plumes during breeding season
     subtype:  #snowy_egret__snowyegret__snowy_heron__snowyheron__Egretta_thula  small New World egret
     subtype:  #little_egret__Egretta_garzetta  Old World egret
     subtype:  #great_white_heron__greatwhiteheron__Casmerodius_albus  widely distributed Old World white egret
     subtype:  #American_egret__great_white_heron__greatwhiteheron__Egretta_albus  the common American egret; a variety of the Old World Casmerodius albus
     subtype:  #cattle_egret__Bubulcus_ibis  small white egret widely distributed in warm regions often found around grazing animals
  subtype:  #little_blue_heron__Egretta_caerulea  small bluish gray heron of the western hemisphere
  subtype:  #night_heron__nightheron__night_raven__nightraven  nocturnal or crepuscular herons
     subtype:  #black-crowned_night_heron__blackcrownednightheron__Nycticorax_nycticorax  night heron of both Old and New Worlds
     subtype:  #yellow-crowned_night_heron__Nyctanassa_violacea  North American night heron
  subtype:  #boatbill__boat-billed_heron__broadbill__Cochlearius_cochlearius  tropical American heron related to night herons
  subtype:  #bittern  relatively small compact tawny-brown heron with nocturnal habits and a booming cry; found in marshes
     subtype:  #American_bittern__stake_driver__stakedriver__Botaurus_lentiginosus  a kind of bittern
     subtype:  #European_bittern__Botaurus_stellaris  a kind of bittern
     subtype:  #least_bittern__leastbittern__Ixobrychus_exilis  small American bittern

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