Phylum Chordata Bateson, 1885 - chordates
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
         Order Ciconiiformes Bonaparte, 1854
           Family Ardeidae Leach, 1820 - herons, bitterns and egrets
             Genus Ardea Linnaeus, 1758
               01 Ardea cinerea Linnaeus, 1758 - grey heron
               02 Ardea herodias Linnaeus, 1758 - great blue heron
               03 Ardea cocoi Linnaeus, 1766 - Cocoi heron
               04 Ardea pacifica Latham, 1802 - white-necked heron
               05 Ardea melanocephala Children & Vigors, 1826 - black-headed heron
               06 Ardea humbloti Milne-Edwards & Grandidier, 1885 - Humblot's heron
               07 Ardea imperialis St. Baker, 1928
               08 Ardea sumatrana Raffles, 1822 - great-billed heron
               09 Ardea goliath Cretzschmar, 1829 - Goliath heron
               10 Ardea purpurea Linnaeus, 1766 - purple heron