Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Strigiformes Wagler, 1830 - owls
         Family Strigidae Vigors, 1825 - owls
           Subfamily Striginae Vigors, 1825 - strange-eared owls
             Genus Otus Pennant, 1769
               Otus sunia (Hodgson, 1836) - oriental scops-owl
                 1 Otus sunia japonicus Temminck & Schlegel, 1844
                 2 Otus sunia stictonotus (Sharpe, 1875)
                 3 Otus sunia malayanus (Hay, 1845)
                 4 Otus sunia sunia (Hodgson, 1836)
                 5 Otus sunia distans Friedmann & Deignan, 1939
                 6 Otus sunia rufipennis (Sharpe, 1875)
                 7 Otus sunia leggei Ticehurst, 1923
                 8 Otus sunia modestus (Walden, 1874)
                 9 Otus sunia nicobaricus (Hume, 1876)