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 Tyranni - suboscines
            Count: [s] 10f;291g;1157s;271ss; ‡2s
               Infraorder Tyrannides Sibley et al., 1988
              Count: -
                 Parvorder Furnariida
                Count: [s] 4f;86g;375s;110ss; ‡1s
                   Superfamily Furnarioidea
                  Count: [s] 1f;66g;278s;74ss; ‡1s
                     Family Furnariidae Gray, 1840 - ovenbirds
                    Count: [s] 66g;278s;74ss; ‡1s
                       Subfamily Furnariinae del Hoyo et al., 2016 see Family Furnariidae Gray, 1840
                      Count: [s] 53g;230s;41ss; ‡1s
                         Genus Xenops Illiger, 1811
                        Count: -
                           1 Xenops milleri (Chapman, 1914) - rufous-tailed xenops
                          Count: -
                           2 Xenops tenuirostris Pelzeln, 1859 - slender-billed xenops
                          Count: -
                           3 Xenops minutus (Sparrman, 1788) - plain xenops
                          Count: -
                           4 Xenops rutilans Temminck, 1821 - streaked xenops
                          Count: -