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 Asio Brisson, 1760
                         1 Asio otus (C. Linnaeus, 1758) - long-eared owl
                         2 Asio stygius (Wagler, 1832) - stygian owl
                         3 Asio flammeus (Pontoppidan, 1763) - short-eared owl
                         4 Asio capensis (A. Smith, 1834) - marsh owl
                         5 Asio abyssinicus (Guérin-Méneville, 1843) - Abyssinian owl
                         6 Asio madagascariensis (A. Smith, 1834) - Madagascar owl