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 Botaurinae Bock, 1956
             Genus Dupetor Heine & Reichenow, 1890 [monotypic]
               Dupetor flavicollis (Latham, 1790) - black bittern
                 1 Dupetor flavicollis flavicollis (Latham, 1790)
                 2 Dupetor flavicollis australis (Lesson, 1831)
                 3 Dupetor flavicollis woodfordi (Ogilvie-Grant, 1888)