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] Charadriiformes Huxley, 1867 - shorebirds, gulls, auks
         Family Laridae Vigors, 1825 - gulls, terns and skimmers
           Subfamily Sterninae Bonaparte, 1838 - terns
             Genus Sterna Linnaeus, 1758
               Sterna bergii Lichtenstein, 1823 - great crested-tern
                 1 Sterna bergii bergii Lichtenstein, 1823
                 2 Sterna bergii enigma Clancey, 1979
                 3 Sterna bergii thalassina Stresemann, 1914
                 4 Sterna bergii velox Cretzschmar, 1827
                 5 Sterna bergii cristata Stephens, 1826