Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Ciconiiformes Bonaparte, 1854
                   Family Ardeidae Leach, 1820 - herons, bitterns and egrets
                     01 Genus Ardea Linnaeus, 1758
                     02 Genus Casmerodius Gloger, 1842 see Genus Ardea Linnaeus, 1758
                     03 Genus Mesophoyx Sharpe, 1894 see Genus Egretta Forster, 1817
                     04 Genus Egretta Forster, 1817
                     05 Genus Melanophoyx Sharpe, 1894 see Genus Egretta Forster, 1817
                     06 Genus Notophoyx Sharpe, 1895 see Genus Egretta Forster, 1817
                     07 Genus Florida Baird, 1858 see Genus Egretta Forster, 1817
                     08 Genus Hydranassa Baird, 1858 see Genus Egretta Forster, 1817
                     09 Genus Agamia Reichenbach, 1853
                     10 Genus Butorides Blyth, 1852
                     11 Genus Erythrocnus Sharpe, 1895 see Genus Ardeola Boie, 1822
                     12 Genus Ardeola Boie, 1822
                     13 Genus Cochlearius Brisson, 1760
                     14 Genus Syrigma Ridgway, 1878
                     15 Genus Nyctanassa Stejneger, 1887
                     16 Genus Pilherodius Reichenbach, 1850
                     17 Genus Nycticorax Forster, 1817
                     18 Genus Gorsachius Bonaparte, 1855
                     19 Genus Zebrilus Bonaparte, 1855
                     20 Genus Tigrisoma Swainson, 1827
                     21 Genus Tigriornis Sharpe, 1895
                     22 Genus Zonerodius Salvadori, 1882
                     23 Genus Ixobrychus Billberg, 1828
                     24 Genus Botaurus Stephens, 1819