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 Strigimorphae see Superorder Falconimorphae Seebohm, 1890
           Order Strigiformes Wagler, 1830 - owls
             Suborder Strigi see Order Strigiformes Wagler, 1830
               Parvorder Strigida see Order Strigiformes Wagler, 1830
                 Family Strigidae Vigors, 1825 - owls
                   Genus Bubo Duméril, 1806
                     01 Bubo virginianus (J.F. Gmelin, 1788) - great horned owl
                     02 Bubo bubo (C. Linnaeus, 1758) - Eurasian eagle-owl
                     03 Bubo bengalensis (Franklin, 1831) - rock eagle-owl see Bubo bubo bengalensis (Franklin, 1831)
                     04 Bubo ascalaphus Savigny, 1809 - pharaoh eagle-owl
                     05 Bubo capensis A. Smith, 1834 - Cape eagle-owl
                     06 Bubo africanus (Temminck, 1821) - spotted eagle-owl
                     07 Bubo poensis Fraser, 1854 - Fraser's eagle-owl
                     08 Bubo vosseleri Reichenow, 1908 - Usambara eagle-owl
                     09 Bubo nipalensis Hodgson, 1836 - spot-bellied eagle-owl
                     10 Bubo sumatranus (Raffles, 1822) - barred eagle-owl
                     11 Bubo shelleyi (Sharpe & Ussher, 1872) - Shelley's eagle-owl
                     12 Bubo lacteus (Temminck, 1820) - Verreaux's eagle-owl
                     13 Bubo coromandus (Latham, 1790) - dusky eagle-owl
                     14 Bubo leucostictus Hartlaub, 1855 - Akun eagle-owl
                     15 Bubo philippensis (Kaup, 1851) - Philippine eagle-owl