Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Passeriformes Linnaeus, 1758
                   Suborder Oscines see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
                     Family Sittidae Lesson, 1828 - nuthatches and wallcreeper
                       Subfamily Sittinae
                         Genus Sitta Linnaeus, 1758
                           01 Sitta tephronota Sharpe, 1872
                           02 Sitta neumayer Michahelles, 1830
                           03 Sitta europaea Linnaeus, 1758
                           04 Sitta himalayensis Jardine & Selby, 1835
                           05 Sitta whiteheadi Sharpe, 1884
                           06 Sitta krueperi Pelzeln, 1863
                           07 Sitta yunnanensis Ogilvie-Grant, 1900
                           08 Sitta villosa J. Verreaux, 1865
                           09 Sitta canadensis Linnaeus, 1766 - red-breasted nuthatch
                           10 Sitta magna Wardlaw Ramsay, 1876
                           11 Sitta frontalis Swainson, 1820
                           12 Sitta azurea Lesson, 1830
                           13 Sitta formosa Blyth, 1843
                           14 Sitta leucopsis Gould, 1850
                           15 Sitta carolinensis Latham, 1790 - white-breasted nuthatch
                           16 Sitta pygmaea Vigors, 1839 - pygmy nuthatch
                           17 Sitta pusilla Latham, 1790 - brown-headed nuthatch