Phylum Chordata Bateson, 1885 - chordates
Count: -
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
  Count: -
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
    Count: -
       Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
      Count: -
         Order Ciconiiformes Bonaparte, 1854
        Count: [*] 6f;43g;121s
           Family Ardeidae Leach, 1820 - herons, bitterns and egrets
          Count: [*] 18g;62s
             Genus Ixobrychus Billberg, 1828
            Count: [*] 9s
               1 Ixobrychus involucris (Vieillot, 1823) - stripe-backed bittern
              Count: -
               2 Ixobrychus exilis (Gmelin, 1789) - least bittern
              Count: -
               3 Ixobrychus minutus (Linnaeus, 1766) - little bittern
              Count: -
               4 Ixobrychus novaezelandiae (Purdie, 1871) - New Zealand bittern
              Count: -
               5 Ixobrychus sinensis (Gmelin, 1789) - yellow bittern
              Count: -
               6 Ixobrychus eurhythmus (Swinhoe, 1873) - Schrenk's bittern
              Count: -
               7 Ixobrychus cinnamomeus (Gmelin, 1789) - cinnamon bittern
              Count: -
               8 Ixobrychus sturmii (Wagler, 1827) - dwarf bittern
              Count: -
               9 Ixobrychus flavicollis (Latham, 1790) see Dupetor flavicollis (Latham, 1790)
              Count: -