Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
Count: [s] 23o;144f;2043g;9628s;2127ss; ‡1f;21g;74s;12ss
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
  Count: [s] 23o;144f;2043g;9628s;2127ss; ‡1f;21g;74s;12ss
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
    Count: [s] 21o;139f;2029g;9571s;2115ss; ‡1f;21g;74s;12ss
       Parvclass Passerae see Superorder Passerimorphae Sibley et al., 1988
      Count: [s] 10o;106f;1787g;8445s;1871ss; ‡1f;18g;69s;9ss
         Superorder Passerimorphae Sibley et al., 1988
        Count: -
           Order Ciconiiformes Bonaparte, 1854
          Count: -
             Suborder Ciconii see Suborder Ciconiae Bonaparte, 1854
            Count: [s] 18f;169g;652s;135ss; ‡5s;1ss
               Infraorder Ciconiides see Suborder Ciconiae Bonaparte, 1854
              Count: [s] 15f;92g;351s;69ss; ‡4s;1ss
                 Parvorder Ciconiida see Suborder Ciconiae Bonaparte, 1854
                Count: [s] 10f;80g;279s;59ss; ‡1s;1ss
                   Superfamily Procellarioidea Fürbringer, 1888
                  Count: -
                     Family Procellariidae Leach, 1820 - petrels, shearwaters
                    Count: [s] 22g;113s;21ss; ‡1s;1ss
                       Subfamily Procellariinae Vigors, 1825 see Family Procellariidae Leach, 1820
                      Count: [s] 13g;79s;16ss; ‡1ss
                         Genus Pterodroma Bonaparte, 1856
                        Count: [s] 34s;3ss; ‡1ss
                           Pterodroma longirostris (Stejneger, 1893) - Stejneger's petrel
                          Count: -