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 Gruiformes Bonaparte, 1854
          Count: -
             Suborder Grui see Suborder Grues Bonaparte, 1854
            Count: [s] 7f;17g;51s;4ss
               Infraorder Gruides see Suborder Grues Bonaparte, 1854
              Count: [*] 5f;10g;25s
                 Parvorder Gruida see Suborder Grues Bonaparte, 1854
                Count: [*] 3f;7g;22s
                   Superfamily Gruoidea Vigors, 1825
                  Count: -
                     Family Heliornithidae Gray, 1841 - finfoots
                    Count: -
                       Tribe Heliornithini - sungrebes see Family Heliornithidae Gray, 1841
                      Count: [*] 3g;3s
                         1 Genus Podica Lesson, 1831
                        Count: [*] 1s
                         2 Genus Heliopais Sharpe, 1893
                        Count: [*] 1s
                         3 Genus Heliornis Bonnaterre, 1791
                        Count: [*] 1s