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 Buboninae Vigors, 1825 - normal owls see Subfamily Striginae Vigors, 1825
                       Genus Glaucidium Boie, 1826
                         01 Glaucidium passerinum (C. Linnaeus, 1758) - Eurasian pygmy-owl
                         02 Glaucidium brasilianum (J.F. Gmelin, 1788) - ferruginous pygmy-owl
                         03 Glaucidium gnoma Wagler, 1832 - mountain pygmy-owl
                         04 Glaucidium minutissimum (Wied, 1830) - least pygmy-owl
                         05 Glaucidium brodiei (E. Burton, 1836) - collared owlet
                         06 Glaucidium jardinii (Bonaparte, 1855) - Andean pygmy-owl
                         07 Glaucidium siju (d'Orbigny, 1839) - Cuban pygmy-owl
                         08 Glaucidium perlatum (Vieillot, 1817) - pearl-spotted owlet
                         09 Glaucidium capense (A. Smith, 1834) - African barred owlet
                         10 Glaucidium radiatum (Tickell, 1833) - jungle owlet
                         11 Glaucidium cuculoides (Vigors, 1831) - Asian barred owlet