Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
       Parvclass Passerae see Superorder Passerimorphae Sibley et al., 1988
         Superorder Passerimorphae Sibley et al., 1988
           Order Ciconiiformes Bonaparte, 1854
             Suborder Charadrii Huxley, 1867 - shorebirds see Order Charadriiformes Huxley, 1867
               Infraorder Charadriides Huxley, 1867
                 Parvorder Charadriida see Superfamily Charadrioidea Vigors, 1825
                   Superfamily Laroidea Vigors, 1825
                     Family Laridae Vigors, 1825 - gulls, terns and skimmers
                       Subfamily Larinae Vigors, 1825 - gulls
                         Tribe Sternini Bonaparte, 1838 - terns see Subfamily Sterninae Bonaparte, 1838
                           Genus Sterna Linnaeus, 1758
                             01 Sterna nilotica Gmelin, 1789 - gull-billed tern
                             02 Sterna caspia Pallas, 1770 - Caspian tern
                             03 Sterna aurantia Gray, 1831 - river tern
                             04 Sterna maxima Boddaert, 1783 - royal tern
                             05 Sterna elegans Gambel, 1849 - elegant tern
                             06 Sterna bengalensis Lesson, 1831 - lesser crested-tern
                             07 Sterna bergii Lichtenstein, 1823 - great crested-tern
                             08 Sterna bernsteini Schlegel, 1863 - Chinese crested-tern
                             09 Sterna sandvicensis Latham, 1787 - sandwich tern
                             10 Sterna dougallii Montagu, 1813 - roseate tern
                             11 Sterna striata Gmelin, 1789 - white-fronted tern
                             12 Sterna sumatrana Raffles, 1822 - black-naped tern
                             13 Sterna hirundinacea Lesson, 1831 - South American tern
                             14 Sterna hirundo Linnaeus, 1758 - common tern
                             15 Sterna paradisaea Pontoppidan, 1763 - Arctic tern
                             16 Sterna vittata Gmelin, 1789 - Antarctic tern
                             17 Sterna virgata Cabanis, 1875 - Kerguelen tern
                             18 Sterna forsteri Nuttall, 1834 - Forster's tern
                             19 Sterna trudeaui Audubon, 1838 - snowy-crowned tern
                             20 Sterna albifrons Pallas, 1764 - little tern
                             21 Sterna saundersi Hume, 1877 - Saunders's tern
                             22 Sterna antillarum (Lesson, 1847) - least tern
                             23 Sterna superciliaris Vieillot, 1819 - yellow-billed tern
                             24 Sterna lorata Philippi & Landbeck, 1861 - Peruvian tern
                             25 Sterna nereis (Gould, 1843) - fairy tern
                             26 Sterna balaenarum (Strickland, 1852) - Damara tern
                             27 Sterna repressa Hartert, 1916 - white-cheeked tern
                             28 Sterna acuticauda Gray, 1831 - black-bellied tern
                             29 Sterna aleutica Baird, 1869 - Aleutian tern
                             30 Sterna lunata Peale, 1848 - grey-backed tern
                             31 Sterna anaethetus Scopoli, 1786 - bridled tern
                             32 Sterna fuscata Linnaeus, 1766 - sooty tern