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 Passeriformes Linnaeus, 1758
             Suborder Passeri see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
               Parvorder Passerida (C. Linnaeus, 1758) Sibley et al., 1988
                 Superfamily Sylvioidea
                   Family Certhiidae Leach, 1820 - treecreepers
                     Subfamily Certhiinae
                       Tribe Certhiini see Subfamily Certhiinae
                         Genus Certhia Linnaeus, 1758
                           1 Certhia familiaris Linnaeus, 1758
                           2 Certhia americana Bonaparte, 1838
                           3 Certhia brachydactyla C.L. Brehm, 1820
                           4 Certhia himalayana Vigors, 1832
                           5 Certhia nipalensis Blyth, 1845
                           6 Certhia discolor Blyth, 1845