Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Ciconiiformes Bonaparte, 1854
         Family Ardeidae Leach, 1820 - herons, bitterns and egrets
           Subfamily Ardeinae Leach, 1820
             Genus Ardea Linnaeus, 1758
               Ardea purpurea Linnaeus, 1766 - purple heron
                 1 Ardea purpurea purpurea Linnaeus, 1766 - purple heron
                 2 Ardea purpurea madagascariensis van Oort, 1910
                 3 Ardea purpurea manilensis Meyen, 1834