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 Alcinae Vigors - auks, murres, puffins
                         01 Genus Alle Link, 1806
                         02 Genus Uria Brisson, 1760
                         03 Genus Alca Linnaeus, 1758
                         04 Genus ‡Pinguinus Bonnaterre, 1791
                         05 Genus Cepphus Pallas, 1769
                         06 Genus Brachyramphus Brandt, 1837
                         07 Genus Synthliboramphus Brandt, 1837
                         08 Genus Ptychoramphus Brandt, 1837
                         09 Genus Cyclorrhynchus Kaup, 1829 see Genus Aethia Merrem, 1788
                         10 Genus Aethia Merrem, 1788
                         11 Genus Cerorhinca Bonaparte, 1828
                         12 Genus Fratercula Brisson, 1760