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 Podicipediformes Fürbringer, 1888
        Count: [*] 1f;6g;20s; ‡2s
           Family Podicipedidae Bonaparte, 1832 - grebes
          Count: [*] 6g;20s; ‡2s
             Genus Tachybaptus Reichenbach, 1853
            Count: [*] 5s
               1 Tachybaptus ruficollis (Pallas, 1764) - little grebe
              Count: -
               2 Tachybaptus novaehollandiae (Stephens, 1826) - Australasian grebe
              Count: -
               3 Tachybaptus rufolavatus (Delacour, 1932) - Alaotra grebe
              Count: -
               4 Tachybaptus pelzelnii (Hartlaub, 1861) - Madagascan grebe
              Count: -
               5 Tachybaptus dominicus (Linnaeus, 1766) - least grebe
              Count: -