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 Passeriformes Linnaeus, 1758
          Count: [s] 46f;1157g;5711s;1372ss; ‡10g;28s;6ss
             Suborder Passeri see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
            Count: [s] 36f;866g;4554s;1101ss; ‡10g;26s;6ss
               Parvorder Passerida (C. Linnaeus, 1758) Sibley et al., 1988
              Count: -
                 Superfamily Muscicapoidea
                Count: [s] 4f;111g;606s;134ss; ‡2g;7s
                   Family Bombycillidae Swainson, 1831 - waxwings and allies
                  Count: -
                     Tribe Ptilogonatini see Subfamily Ptilogonatinae
                    Count: [*] 3g;4s
                       Genus Ptilogonys Swainson, 1827
                      Count: [*] 2s
                         1 Ptilogonys cinereus Swainson, 1827
                        Count: -
                         2 Ptilogonys caudatus Cabanis, 1861
                        Count: -