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
             01 Genus Otus Pennant, 1769
             02 Genus Pyrroglaux Yamashina, 1938 [monotypic]
             03 Genus Gymnoglaux Cabanis, 1855 [monotypic]
             04 Genus Ptilopsis Kaup, 1848
             05 Genus Mimizuku Hachisuka, 1934 [monotypic]
             06 Genus Nyctea Stephens, 1826 [monotypic]
             07 Genus Bubo Duméril, 1806
             08 Genus Ketupa Lesson, 1830
             09 Genus Scotopelia Bonaparte, 1850
             10 Genus Strix Linnaeus, 1758
             11 Genus Ciccaba Wagler, 1832
             12 Genus Jubula Bates, 1929 [monotypic]
             13 Genus Lophostrix Lesson, 1836 [monotypic]
             14 Genus Pulsatrix Kaup, 1848