Species (79)
- Asio flammeus (Pontoppidan, 1763)
- Athene noctua (Scopoli, 1769)
- Otus scops (Linnaeus, 1758)
- Glaucidium nanum (King, 1828)
- Glaucidium minutissimum (Wied, 1821)
- Glaucidium perlatum (Vieillot, 1817)
- Glaucidium radiatum (Tickell, 1833)
- Otus albogularis (Bonaparte, 1850) ssp. macabrum
- Otus asio Ridgway, 1877 ssp. maxwelliae
- Otus capnodes (Gurney, 1889)
- Otus lempiji Deignan, 1950 ssp. hypnodes
- Strix hylophila Temminck, 1825
- Strix leptogrammica Sykes, 1832 ssp. indranee
- Strix nebulosa Thunberg, 1798 ssp. lapponica
- Aegolius funereus (Bonaparte, 1838) ssp. richardsoni
- Aegolius harrisi =harrisii (Cassin, 1849)
- Bubo poensis Fraser, 1853
- Bubo sumatranus (Raffles, 1822)
- Bubo virginianus (J.F. Gmelin, 1788)
- Bubo virginianus Hoy, 1852 ssp. subarcticus
- Glaucidium brasilianum (Daudin, 1800) ssp. phalaenoides
- Glaucidium brasilianum (J.F. Gmelin, 1788)
- Glaucidium brodiei (Burton, 1836)
- Glaucidium capense (A. Smith, 1834)
- Glaucidium castanonotum (Blyth, 1852)
- Glaucidium cuculoides (Vigors, 1831)
- Glaucidium hardyi Vieilliard, 1989
- Otus semitorques Temminck & Schlegel, 1850
- Otus trichopsis Van Rossem, 1932 ssp. mesamericanus
- Strix albitarsis (Bonaparte, 1850)
- Strix hulula Spix 1824 ssp. albomarginata
- Strix leptogrammica (Hume, 1873) ssp. ochrogenys
- Strix ocellata (Lesson, 1839)
- Strix nigrolineata (P.L. Sclater, 1859)
- Strix uralensis Lindroth, 1788 ssp. liturata
- Strix varia (Barton, 1799)
- Strix virgata (W. Bertoni, 1901) ssp. borelliana
- Strix virgata (Griscom, 1929) ssp. centralis
- Strix virgata (Cassin, 1848)
- Strix varia Latham, 1801 ssp. georgica
- Tyto alba (Gould, 1837) ssp. delicatula
- Tyto alba (Blyth, 1862) ssp. affinis
- Tyto alba (C.L. Brehm, 1831) ssp. guttata
- Tyto tenebricosa (Gould, 1845)
- Tyto tenebricosa (Schlegel, 1879) ssp. arfaki
- Tyto alba (Bonaparte, 1838) ssp. pratincola
- Asio clamator (Vieillot, 1807)
- Asio flammeus (Vieillot, 1817) ssp. suinda
- Asio otus Godfrey, 1948 ssp. tuftsi
- Asio otus (Lesson, 1830) ssp. wilsonianus
- Athene brama Koelz, 1950 ssp. albida
- Athene cunicularia (Bonaparte, 1825) ssp. hypugaea
- Athene noctua Blyth, 1847 ssp. bactriana
- Athene noctua Hartert, 1913 ssp. lilith
- Bubo africanus Sharpe, 1886 ssp. milesi
- Bubo ascalaphus Erlanger, 1897 ssp. desertorum
- Bubo ascalaphus Savigny, 1809
- Bubo bengalensis (Franklin, 1831)
- Bubo bubo (Gloger, 1833) ssp. sibiricus
- Bubo bubo (Eversmann, 1835) ssp. turcomanus
- Bubo lacteus (Temminck, 1820)
- Bubo magellanicus (J.F. Gmelin, 1788)
- Bubo nepalensis =nipalensis Hodgson, 1836
- Bubo sumatranus (Temminck, 1823) ssp. strepitans
- Surnia ulula (Linnaeus, 1758)
- Strix uralensis Pallas, 1771
- Asio capensis (A. Smith, 1834)
- Bubo africanus (Temminck, 1821)
- Bubo capensis A. Smith, 1834
- Otus asio (Linnaeus, 1758)
- Strix woodfordii (A. Smith, 1834)
- Strix nebulosa J.R. Forster, 1772
- Tyto capensis (A. Smith, 1834)
- Strix aluco Linnaeus, 1758
- Asio otus (Linnaeus, 1758)
- Tyto alba (Scopoli, 1769)
- Aegolius funereus (Linnaeus, 1758)
- Glaucidium passerinum (Linnaeus, 1758)
- Bubo bubo (Linnaeus, 1758)