Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Strigiformes Wagler, 1830 - owls
         Family Strigidae Vigors, 1825 - owls
           Subfamily Striginae Vigors, 1825 - strange-eared owls
             Genus Otus Pennant, 1769
               01 Otus sagittatus (Cassin, 1848) - white-fronted scops-owl
               02 Otus rufescens (Horsfield, 1821) - reddish scops-owl
               03 Otus icterorhynchus (Shelley, 1873) - sandy scops-owl
               04 Otus ireneae Ripley, 1966 - Sokoke scops-owl
               05 Otus balli (Hume, 1873) - Andaman scops-owl
               06 Otus alfredi (E. Hartert, 1897)
               07 Otus spilocephalus (Blyth, 1846) - mountain scops-owl
               08 Otus brookii (Sharpe, 1892) - rajah scops-owl
               09 Otus angelinae (Finsch, 1912) - Javan scops-owl
               10 Otus mentawi Chasen & Kloss, 1926 - Mentawai scops-owl
               11 Otus bakkamoena Pennant, 1769 - collared scops-owl
               12 Otus fuliginosus (Sharpe, 1888) - Palawan scops-owl
               13 Otus megalotis (Walden, 1875) - Philippine scops-owl
               14 Otus silvicola (Wallace, 1864) - Wallace's scops-owl
               15 Otus mirus Ripley & Rabor, 1968 - Mindanao scops-owl
               16 Otus longicornis (Ogilvie-Grant, 1894) - Luzon scops-owl
               17 Otus mindorensis (J. Whitehead, 1899) - Mindoro scops-owl
               18 Otus brucei (Hume, 1872) - pallid scops-owl
               19 Otus senegalensis (Swainson, 1837)
               20 Otus scops (C. Linnaeus, 1758) - common scops-owl
               21 Otus sunia (Hodgson, 1836) - oriental scops-owl
               22 Otus flammeolus (Kaup, 1853) - flammulated owl
               23 Otus magicus (S. Müller, 1841) - Moluccan scops-owl
               24 Otus mantananensis (Sharpe, 1892) - Mantanani scops-owl
               25 Otus elegans (Cassin, 1852) - elegant scops-owl
               26 Otus manadensis (Quoy & Gaimard, 1830) - Sulawesi scops-owl
               27 Otus collari Lambert & Rasmussen, 1998 - Sangihe scops-owl
               28 Otus beccarii (Salvadori, 1876)
               29 Otus insularis (Tristram, 1880) - seychelles owl
               30 Otus umbra (Richmond, 1903) - Simeulue scops-owl
               31 Otus alius Rasmussen, 1998 - Nicobar scops-owl
               32 Otus pembaensis Pakenham, 1937
               33 Otus pauliani Benson, 1960 - Comoro scops-owl
               34 Otus capnodes (J.H. Gurney, 1889)
               35 Otus moheliensis Lafontaine & Moulaert, 1998 - Moheli scops-owl
               36 Otus mayottensis Benson, 1960
               37 Otus madagascariensis (A. Grandidier, 1867)
               38 Otus rutilus (Pucheran, 1849) - Malagasy scops-owl
               39 Otus hartlaubi (Giebel, 1872) - Sao Tome scops-owl
               40 Otus asio (C. Linnaeus, 1758) - eastern screech-owl
               41 Otus kennicotti (Elliot, 1867) see Otus kennicottii (Elliot, 1867)
               42 Otus seductus R.T. Moore, 1941
               43 Otus cooperi (Ridgway, 1878)
               44 Otus trichopsis (Wagler, 1832) - whiskered screech-owl
               45 Otus choliba (Vieillot, 1817) - tropical screech-owl
               46 Otus roboratus Bangs & Noble, 1918 - West Peruvian screech-owl
               47 Otus koepckeae Hekstra, 1982 - Koepcke's screech-owl
               48 Otus clarkii L. Kelso & E.H. Kelso, 1935 - bare-shanked screech-owl
               49 Otus barbarus (Sclater & Salvin, 1868) - Santa Barbara screech-owl
               50 Otus ingens (Salvin, 1897) - rufescent screech-owl
               51 Otus colombianus Traylor, 1952
               52 Otus petersoni Fitzpatrick & O'Neill, 1986
               53 Otus marshalli Weske & Terborgh, 1981 - cloud-forest screech-owl
               54 Otus watsonii (Cassin, 1848) - tawny-bellied screech-owl
               55 Otus guatemalae (Sharpe, 1875)
               56 Otus vermiculatus (Ridgway, 1887) - vermiculated screech-owl
               57 Otus hoyi C. König & Straneck, 1989
               58 Otus atricapilla (Temminck, 1822)
               59 Otus sanctaecatarinae (Salvin, 1897) - long-tufted screech-owl
               60 Otus nudipes (Daudin, 1800) - Puerto Rican screech-owl
               61 Otus albogularis (Cassin, 1849) - white-throated screech-owl