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 Glaucidium Boie, 1826
01 Glaucidium passerinum (C. Linnaeus, 1758) - Eurasian pygmy-owl
02 Glaucidium brodiei (E. Burton, 1836) - collared owlet
03 Glaucidium perlatum (Vieillot, 1817) - pearl-spotted owlet
04 Glaucidium californicum Sclater, 1857 - northern pygmy-owl
see Glaucidium gnoma californicum Sclater, 1857
05 Glaucidium gnoma Wagler, 1832 - mountain pygmy-owl
06 Glaucidium jardinii (Bonaparte, 1855) - Andean pygmy-owl
07 Glaucidium bolivianum König, 1991 - Yungas pygmy-owl
08 Glaucidium hardyi Vielliard, 1989 - Hardy's pygmy-owl
09 Glaucidium minutissimum (Wied, 1830) - least pygmy-owl
10 Glaucidium brasilianum (J.F. Gmelin, 1788) - ferruginous pygmy-owl
11 Glaucidium peruanum König, 1991 - Peruvian pygmy-owl
12 Glaucidium nanum (P.P. King, 1828) - austral pygmy-owl
13 Glaucidium siju (d'Orbigny, 1839) - Cuban pygmy-owl
14 Glaucidium tephronotum Sharpe, 1875 - red-chested owlet
15 Glaucidium sjostedti Reichenow, 1893 - Sjostedt's owlet
16 Glaucidium cuculoides (Vigors, 1831) - Asian barred owlet
17 Glaucidium castanopterum (Horsfield, 1821) - Javan owlet
18 Glaucidium radiatum (Tickell, 1833) - jungle owlet
19 Glaucidium castanonotum (Blyth, 1852) - chestnut-backed owlet
20 Glaucidium capense (A. Smith, 1834) - African barred owlet
21 Glaucidium castaneum Neumann, 1893 - chestnut owlet
see Glaucidium capense castaneum Reichenow, 1893
22 Glaucidium ngamiense (Roberts, 1932) - Ngami owlet
see Glaucidium capense ngamiense (Roberts, 1932)
23 Glaucidium scheffleri Neumann, 1911 - Scheffler's owlet
see Glaucidium capense scheffleri Neumann, 1911
24 Glaucidium albertinum Prigogine, 1983 - Albertine owlet
see Glaucidium capense albertinum Prigogine, 1983