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 Strigiformes Wagler, 1830 - owls
                   Family Strigidae Vigors, 1825 - owls
                     Subfamily Striginae Vigors, 1825 - strange-eared owls
                       Genus Strix Linnaeus, 1758
                         01 Strix aluco Linnaeus, 1758 - tawny owl
                         02 Strix varia Barton, 1799 - barred owl
                         03 Strix uralensis Pallas, 1771 - Ural owl
                         04 Strix nebulosa J.R. Forster, 1772 - great grey owl
                         05 Strix occidentalis (Xántus de Vesey, 1860) - spotted owl
                         06 Strix hylophila Temminck, 1825 - rusty-barred owl
                         07 Strix rufipes P.P. King, 1828 - rufous-legged owl
                         08 Strix butleri (Hume, 1878) - Hume's owl
                         09 Strix ocellata (Lesson, 1839) - mottled wood-owl
                         10 Strix leptogrammica Temminck, 1832 - brown wood-owl
                         11 Strix seloputo Horsfield, 1821 - spotted wood-owl