DNA samples are required for these species:

Tyto | Phodilus | Otus | Megascops | Pyrroglaux | Gymnoglaux | Ptilopsis | Mimizuku | Bubo | Scotopelia | Strix | Jubula | Lophostrix | Pulsatrix | Surnia | Glaucidium | Xenoglaux | Micrathene | Athene | Aegolius | Ninox | Uroglaux | Sceloglaux | Pseudoscops | Asio | Nesasio
Tyto multipunctata Lesser Sooty Owl Mathews, Gregory Macalister. 1912. Novitates Zoologicae (Novit. Zool.) 18: p 257.
Tyto inexspectata Minahassa Barn Owl, Minahassa Masked Owl Schlegel, Herman. 1879. Notes from the Leyden Museum. 1, p. 50, 51.
Tyto nigrobrunnea Sula Island Masked Owl, Taliabu Masked Owl
Tyto sororcula Lesser Masked Owl Sclater, Philip Lutley. 1883. Proceedings of the Scientific meetings of the Zoological Society of London for the year 1883 (PZS). Pt.1, p 52-53.
Tyto manusi Manus Masked Owl Rothschild, Lord Lionel Walter, and Hartert, Ernst Johann. 1914. Novitates Zoologicae (Novit. Zool.; British Museum of Natural History, London) 21: p 291-292.
Tyto aurantia New Britain Barn Owl, New Britain Masked Owl Salvadori, Tomaso. 1881, Atti Reale Accademia della Scienze di Torino, 16, pages 94-95.
Tyto castanops Tasmanian Masked Owl
Formerly considered a subspecies of Tyto novaehollandiae
Gould, John. 1837. Proceedings of the Zoological Society of London (1836) (PZS) pt. 4, no. 48: p 140.
Tyto rosenbergii Celebes Barn Owl, Sulawesi Masked Owl Schlegel, Herman. 1866. Nederlandsch Tijdschrift voor de Dierkunde (Nederl. Tijdschr. Dierk.; Amsterdam) 3: p 181-182.
Tyto deroepstorffi Andaman Masked Owl
Formerly considered a subspecies of Tyto alba and originally described as Strix De-Roepstorffi
Hume, Allan Octavian. 1875. Stray Feathers (Str. Feath) 3: p 390-391.
Tyto prigoginei Congo Bay Owl, African Bay Owl, Itombwe Owl
Formerly in genus Phodilus
Schouteden, Henri. 1952. Revue de zoologie et de botanique africaines (Rev. Zool. Bot. Afr.) 46, p 424-428.
Otus sagittatus White-fronted Scops Owl Cassin, John. 1849. Proceedings of the Academy of Natural Sciences of Philadelphia, 4 (1848), p. 121-123.
Otus rufescens Reddish Scops Owl, Rufous Scops Owl Horsfield, Thomas. 1821. Transactions of the Linnean Society of London, 13, pt. 1, Spec 4, p. 140.
Otus thilohoffmannii Serendib Scops Owl (Warakagoda & Rasmussen) 2004, Bulletin of the British Ornithologists' Club, 124, No.2, pages 85 - 105.
Otus icterorhynchus Cinnamon Scops Owl, Sandy Scops Owl Shelley, Capt. George Ernest. 1873. Ibis, 3rd Series, vol. 3: p 138.
Otus ireneae Sokoke Scops Owl Ripley, S. Dillon. 1966. Ibis 108: p136.
Otus balli Andaman Scops Owl Hume, Allan Octavian. 1873. Stray Feathers (Str. Feath.) 1: p 407-408.
Otus alfredi Flores Scops Owl Hartert, Ernst Johann Otto. 1897. Novitates Zoologicae (Novit. Zool.; British Museum of Natural History, London) 4: p 527-528.
Otus spilocephalus Mountain Scops Owl, Spotted Scops Owl Blyth, Edward. 1846. The Journal of the Asiatic Society of Bengal (J. Asiat. Soc. Bengal) 15: p 8-9
Otus brookii Rajah Scops Owl
Otus angelinae Javan Scops Owl Finsch, Friedrich Hermann Otto. 1912. Ornithologische Monatsberichte, 20, pages 156-159.
Otus mentawi Mentawai Scops Owl Chasen, Frederick Nutter, & Kloss. 1926. Ibis, 12th Series, vol. 2: p 279.
Otus semitorques Japanese Scops Owl Temminck, Coenraad Jacob, & Schlegel, Hermann. 1844. Fauna Japonica, sive descriptio Animalium, quae in itinere per Japoniam...suscepto, annis 1823-30 collegit, notis, observaionibus et adumbrationibus illustravit P. F. de Sieboldt. Conjunctis studiis C. J. Temminck et H. Schlegel pro Vertebratis atque W. de Haan pro Invertibratis elaborata (FaunaJap. Aves[Sieboldt]): p 24, pl. 8.
Otus fuliginosus Palawan Scops Owl Sharpe, Richard Bowdler. 1888. Ibis, 5th Series, vol. 6: p 197.
Otus silvicola Lesser Sunda Scops Owl, Wallace's Scops Owl (Wallace) 1863, Proceedings of the Zoological Society of London, pt.3, pages 487-488.
Otus mirus Mindanao Scops Owl Ripley, S. Dillon, & Rabor, Dioscoro S. 1968. Proceedings of the Biological Society of Washington (Proc. Biol. Soc. Wash.) 81: p 31-33.
Otus longicornis Luzon Scops Owl
Otus mindorensis Mindoro Scops Owl Whitehead, Bret M. 1899. Ibis, 7th Series, vol. 5: p 98-99.
Otus brucei Pallid Scops Owl, Striated Scops Owl, Bruce's Scops Owl Hume, Allan Octavian. 1872. Stray Feathers (Str. Feath.) 1: p 8-10.
Otus senegalensis African Scops Owl
Originally described as Scops
Swainson, William. 1837, The Naturalist's Library, Vol. 11, Ornithology, Birds of Western Africa, Part 1, pages 127-129.
Otus sunia Oriental Scops Owl
Originally described as Scops
Hodgson, Brian Houghton. 1836, Asiatic Researches, 19, pages 175-176.
Otus magicus Moluccan Scops Owl Muller, Salomon. 1841, Verhandelingen over de Natuurlijke Geschiedenis der Nederlandsche Overzeesche Bezittingen, pt.4, p. 110
Otus mantananensis Mantanani Scops Owl
Otus elegans Ryukyu Scops Owl, Elegant Scops Owl Cassin, John. 1852. Proceedings of the Academy of Natural Sciences of Philadelphia , 6, p 185-186.
Otus manadensis Celebes Scops Owl, Sulawesi Scops Owl, Magic Scops Owl
Otus collari Sangihe Scops Owl
Otus beccarii Biak island Scops Owl, Beccari Scops Owl Salvadori, Tommaso. 1876. Annali del Museo Civico di Storia Naturale di Genova, 7 (1875), p. 906-907.
Otus insularis Seychelles Scops Owl, Bare-legged Scops Owl Tristram, Henry Baker. 1880. Ibis, 4th Series, vol. 4, p. 458-459.
Otus umbra Mentaur Scops Owl, Simeulue Scops Owl Richmond, Charles Wallace. 1903. Proceedings of the U.S. National Museum, 26, p. 494-495.
Otus enganensis Enggano Scops Owl Riley, Joseph Harvey. 1927. Proceedings of the Biological Society of Washington, 40, p. 93-94.
Otus alius Nicobar Scops Owl
Otus pembaensis Pemba Scops Owl
Otus pauliani Grand Comoro Scops Owl Benson, Constantine Walter. 1960. Ibis 103B: p 60-66.
Otus capnodes Anjouan Scops Owl Gurney, John Henry. 1889. Ibis, 6th Series, vol. 1, p. 104-107.
Otus moheliensis
Otus rutilus Madagascar Scops Owl, Malagasy Scops Owl
Otus mayottensis Mayotte Scops Owl
Now considered a subspecies of Otus rutilus
Benson, Constantine Walter. 1960. Ibis 103B, p. 60-63.
Otus madagascariensis Torotoroka Scops Owl
Otus hartlaubi Giebel, Christoph, & Gottfried, Andreus. 1872. Thesaurus ornithologiae 1, p. 448.
Megascops seductus Balsas Screech Owl
Formerly in genus Otus
(Moore) 1941, Proceedings of the Biological Society of Washington, 54, pages 156-159.
Megascops cooperi Pacific Screech Owl
Formerly in genus Otus
(Ridgway) 1878, Proceedings of the U.S. National Museum, 1, pages 116-117.
Megascops lambi Oaxaca Screech Owl
Formerly in genus Otus, formerly considered a subspecies of Megascops asio
Moore, Robert Thomas, & Marshall, J.T. 1959. Condor 61: p 224, pt. 3.
Megascops trichopsis Whiskered Screech Owl, Spotted Screech Owl
Formerly in genus Otus
(Wagler) 1832, Isis von Oken, 25, col. 276-277.
Megascops koepckeae Maria Koepcke's Screech Owl
Formerly in genus Otus
(Hekstra) 1982, Bulletin Zoologisch Museum, Universiteit van Amsterdam, vol.9, no.7, pages 49-63 [p.60 (11.9)].
Megascops clarkii Bare-shanked Screech Owl
Formerly in genus Otus
(Kelso, L. & E.H. Kelso) 1935, Biological Leaflet No.5.
Megascops barbarus Bearded Screech Owl, Bridled Screech Owl
Formerly in genus Otus
(Sclater & Salvin) 1868, Proceedings of the Zoological Society of London, pt.1, pages 56-57.
Megascops ingens Rufescent Screech Owl
Formerly in genus Otus
(Salvin) 1897, Bulletin of the British Ornithologists' Club, 6, page 37.
Megascops colombianus Colombian Screech Owl
Formerly in genus Otus
(Traylor) 1952, Natural History Miscellanea, The Chicago Academy of Sciences, No. 99, pages 1-4.
Megascops marshalli Cloud Forest Screech Owl
Formerly in genus Otus
Weske, John S., & Terborgh, John. 1981. Auk 98: p 17.
Megascops watsonii Northern Tawny-bellied Screech Owl
Formerly in genus Otus
(Cassin) 1849, Proceedings of the Academy of Natural Sciences of Philadelphia, 4 (1848), pages 123-124.
Megascops vermiculatus Vermiculated Screech Owl
Formerly in genus Otus
(Ridgway) 1887. Proceedings of the U.S. National Museum, 10, p. 267-268.
Megascops roraimae Roraima Screech Owl
Formerly in genus Otus, Koenig et al. consider this a separate species from both Megascops vermiculatus and Megascops guatemalae
(Salvin) 1897. Bulletin of the British Ornithologists' Club, 6, p. 38.
Megascops napensis Rio Napo Screech Owl
Formerly in genus Otus, Koenig et al. consider this a separate species from both Megascops vermiculatus and Megascops guatemalae
(Chapman) 1928. American Museum Novitates, no. 332, p. 3-5.
Megascops nudipes Puerto Rican Screech Owl
Formerly in genus Otus
 
Pyrroglaux podarginus Palau Owl, Palau Scops Owl
Originally placed in genus Otus, previously considered Palau Scops Owl
Hartlaub, Gustav, and Finsch, Friedrich Hermann Otto. 1872. Proceedings of the Scientific meetings of the Zoological Society of London for the year 1872 (PZS): Pt. 1, p 90.  
Gymnoglaux lawrencii Bare-legged Owl, Cuban Screech Owl
Formerly Otus lawrencii
Sclater, Philip Lutley, and Salvin, Osbert. 1868. Proceedings of the Scientific meetings of the Zoological Society of London for the year 1868 (PZS): Pt. 2, p 327.  
Mimizuku gurneyi Giant Scops Owl, Lesser Eagle Owl, Mindanao Owl
Formerly Otus gurneyi, first described as Pseudoptynx gurneyi
Tweeddale, Arthur Hay, 9th, Marquis of. 1879. Proceedings of the Scientific meetings of the Zoological Society of London for the year 1878 (PZS): Pt 4, p 940, pl. 58.  
Bubo capensis Cape Eagle Owl Smith, Sir Andrew. 1834. South African Quarterly Journal (S. Afr. Q. J.; edited at the South African Institute) (2): p 317.  
Bubo cinerascens Vermiculated Eagle Owl  
Bubo poensis Fraser's Eagle Owl Fraser, Louis. 1854. Proceedings of the Zoological Society of London (1853) (PZS): Pt. 21. no. 248, p. 13, 14.  
Bubo vosseleri Usambara Eagle Owl, Nduk Eagle Owl
Currently considered a subspecies of Bubo poensis
Reichenow, Anton. 1908. Journal fur Ornithologie (J. Orn.) 56: p 139.  
Bubo shelleyi Shelley's Eagle Owl Sharpe, Richard Bowdler, & Ussher, Herbert Taylor. 1872. Ibis, 3rd Series, vol. 2: p 182.  
Bubo coromandus Dusky Eagle Owl Latham, John. 1790. Index orntihologicus, sive Systema ornithologiae; complectens avium divisionem in classes, ordines, genera, species, ipsarumque varietates: adjectis synonymis, locis, descriptionibus, & c. (Index Orn.) 1: p 53.  
Bubo leucostictus Sooty Eagle Owl, Akun Eagle Owl Hartlaub, Carl Johann Gustav. 1855. Journal fur Ornithologie (J. Orn.) 3: p 354.  
Bubo philippensis Philippine Eagle Owl  
Bubo blakistoni Blakiston's Fish Owl
Previously placed in genus Ketupa
Seebohm, Henry. 1884. Ibis, 5th Series, vol. 2: p 42 Usually cited as: Bubo blakistoni, Seebohm. 1884. PZS (1883): p 466 (e.g. Peters Checklist 4:121; HBW 5: 193, 687). The Richmond Index listing gives: Seebohm, Ibis, 5th Series, vol. 2, no.V, Jan 1884. p 42.  
Bubo flavipes Tawny Fish Owl
Previously placed in genus Ketupa
Hodgson, Brian Houghton. 1836. The Journal of the Asiatic Society of Bengal (J. Asiat. Soc. Bengal) 5: p. 364, pl. 26.  
Scotopelia ussheri Rufous Fishing Owl Sharpe, Richard Bowdler. 1871. Ibis, 3rd Series, vol. 1: p 101, pl.12.  
Scotopelia bouvieri Vermiculated Fishing Owl Sharpe, Richard Bowdler. 1875. Ibis, 3rd Series, vol. 5: p 260.  
Strix seloputo Spotted Wood Owl Horsfield, Thomas. 1821. Transactions of the Linnean Society of London (Trans. Linn. Soc. London) (1) 13: p 140.  
Strix ocellata Mottled Wood Owl Lesson, Rene Primevere. 1839. Rev.Zool. Revue Zoologique, par la Societe Cuvierienne (Rev. Zool.; Journal mensuel publie sous la direction de M. F. E. Guerin-Meneville) 2: p. 289.  
Strix leptogrammica Brown Wood Owl  
Strix newarensis Himalayan Wood Owl
Formerly considered a subspecies of Strix leptogrammica
Hodgson, Brian Houghton. 1836. Asiatic Researches, or Asiatick Research (As.Res.; or transactions of the society instituted in Bengal for inquiring into the history, the antiquities, the arts, and sciences, and literature of Asia) 19: p 168.  
Strix occidentalis Spotted Owl Xantus de Vesey, John. 1860. Proceedings of the Academy of Natural Science of Philadelphia (Proc. Acad. Nat. Sci. Philadelphia) 11 (1859): p 193.  
Strix varia Barred Owl Barton, Benjamin Smith. 1799. Fragment of the Natural History of Pennsylvania (Fragm. Nat. Hist. Penn.): p 11.  
Strix fulvescens Fulvous Owl, Guatemala Barred Owl Sclater, Philip Lutley, and Salvin, Osbert. 1868. Proceedings of the Scientific Meetings of the Zoological Society of London for the Year 1868 (PZS): Pt. 1, p 58.  
Strix hylophila Brazilian Owl, Rusty-barred Owl  
Strix rufipes Rufous-legged Owl King, Philip Parker (Rear Admiral). 1827. (The) Zoological Journal 3. (Zool. J.; Conducted by Thomas Bell, John George Children, James de Carle Sowerby, and GB Sowerby. [From vol. 3 edited by NA Vigors, with the co-operation of Thomas Bell, ET Bennett, JE Bicheno, WJ Broderip, JG Children, Thomas Hardwick, T Horsfield, W Kirby, J de Carle Sowerby, W Yarrell] 1824-1835 5 vols., 8vo): p 426.  
Strix chacoensis Chaco Owl Cherrie, George Kruck, & Reichenberger, Elsie M.B. (Mrs.). 1921. American Museum Novitates (Am. Mus. Novit.), no. 27: p 1.
Strix davidi David's Wood Owl, Sichuan Wood Owl Sharpe, Richard Bowdler. 1875. Ibis, 3rd Series, vol. 5: p 256.  
Strix virgata Mottled Owl
Originally placed in genus Ciccaba, originally described as Syrnium
Cassin, John. 1849. Proceedings of the Academy of Natural Science of Philadelphia (Proc. Acad. Nat. Sci. Philadelphia) 4 (1848): p 124. (Ms. Robin Sinn, librarian at the Academy of Natural Sciences indicates that this portion of Vol.4 for 1848 was published in 1849.)  
Strix nigrolineata Black and White Owl
Originally placed in genus Ciccaba
Sclater, Philip Lutley. 1859. Proceedings of the Zoological Society of London (PZS) Pt. (27) 2: p 131.  
Strix huhula Black-banded Owl
Originally placed in genus Ciccaba
Daudin, Francois Marie. 1800. Traite elementaire et complet d'Ornithologie, ou Histoire Naturelle des Oiseaux (Traited Orn. [Daudin]) 2: p 190.  
Strix albitarsis Rufous-banded Owl
Sometimes spelled albitarsus, originally described as Syrnium albitarse, later placed in genus Ciccaba
Bonaparte, Charles Lucien Jules Laurent. 1850. Conspectus generum avium (Consp. Gen. Av.) 1: p 52.
Jubula lettii Maned Owl Buttikofer, Johann. 1889. Notes from the Rijksmuseum van Natuurl. Historie. (Notes Leyden Mus.) 11: p 34.  
Lophostrix cristata Crested Owl  
Pulsatrix pulsatrix Short-browed Owl
Formerly considered a subspecies of Pulsatrix perspicillata
Wied. 1820. Reise nach Brasilien...in 1815 - 1817, 1: p 366.  
Pulsatrix melanota Band-bellied Owl  
Glaucidium brodiei Collared Owlet, Collared Pygmy Owl Burton, Edward, M.D. 1836. Proceedings of the Zoological Society of London (1835) (PZS): Pt. 3, no. 34, p 152.  
Glaucidium costaricanum Mountain Pygmy Owl
Now considered a subspecies of Glaucidium gnoma
Kelso, Leon. 1937. Auk 54: p 304.
Glaucidium cobanense Mountain Pygmy Owl
Now considered a subspecies of Glaucidium gnoma
Sharpe, Richard Bowdler. 1875. Ibis, 3rd Series, vol. 5: p 260.  
Glaucidium hoskinsii Cape Pygmy Owl Brewster, William. 1888. Auk 5: p 136.
Glaucidium nubicola Cloud Forest Pygmy Owl Robbins, Mark B., & Stiles, F Gary. 1999. Auk 116: p 305-315, front cover.
Glaucidium palmarum Colima Pygmy Owl Nelson, Edward William. 1901. Auk 18: p 46.
Glaucidium sanchezi Tamaulipas Pygmy Owl Lowery, George Hines, Jr., and Newman. 1949. Occasional Papers of the Museum of Zoology Louisiana State University (Occ. Pap. Mus. Zool. LSU), no. 22: p 1-4.  
Glaucidium parkeri Subtropical Pygmy Owl Robbins, Mark B., & Howell, Steve N.G. 1995. Wilson Bulletin 107: p 1-6.
Glaucidium ridgwayi Ridgway's Pygmy Owl
Formerly a subspecies of Glaucidium brasilianum
Sharpe, Richard Bowdler. 1875. Ibis, 3rd Series, vol. 5: p 55, in text. Based on: Ridgway. 1873. Proceedings of the Boston Society of Natural History16: p 93.
Glaucidium siju Cuban Pygmy Owl Orbigny, Alcide Dessalines d. 1839. Historia fisica, politica y natural de la Isla de Cuba, por d. Ramon de la Sagra... (Hist. Isla Cuba [Sagra]) 3: p 41.  
Glaucidium sjostedti Reichenow, Anton. 1893. Ornithologische Monatsberichte, herausgegeben von Prof. Dr. Ant. Reichenow (Orn. Monatsb) 1: p 65.  
Glaucidium cuculoides Cuckoo Owlet, Asian Barred Owlet Vigors, Nicholas Aylward. 1831. Proceedings of the Committee of Science and Correspondence of the Zoological Society of London (PZS): Pt. 1, no. 1, p 8.  
Glaucidium castanopterum Javan Owlet, Chesnut-winged Owlet, Spadiced Owlet Horsfield, Thomas. 1821. Transactions of the Linnean Society of London (Trans. Linn. Soc. London) (1) 13: p 141.  
Glaucidium radiatum Barred Jungle Owlet Tickell, Samuel Richard. 1833. The Journal of the Asiatic Society of Bengal (J. Asiat. Soc. Bengal) 2: p 572.  
Glaucidium castanonotum Chesnut-backed Owlet Blyth, Edward. 1846. The Journal of the Asiatic Society of Bengal (J. Asiat. Soc. Bengal) 15: p 280.  
Glaucidium capense African Barred Owlet Smith, Sir (Dr.) Andrew ). 1834. South African Quarterly Journal (S. Afr. Q. J) (2): p 313. (Edited at the South African Institution.)  
Glaucidium ngamiense Ngami Owlet
Now considered a subspecies of Glaucidium capense
Roberts, Austin. 1932. Annals of the Transvaal Museum 15: p 26.  
Glaucidium scheffleri Now considered a subspecies of Glaucidium capense Neumann, Oscar Rudolph (Prof). 1911. Ornithologische Monatsberichte, herausgegeben von Prof. Dr. Ant. Reichenow (Orn. Monatsb.) 19: p 184.  
Glaucidium castaneum Chesnut Owlet Reichenow, Anton. 1893. Ornithologische Monatsberichte, herausgegeben von Prof. Dr. Ant. Reichenow (Orn. Monatsb.) 1: p 62.  
Glaucidium albertinum Albertine Owlet, Prigogine's Owlet Prigogine, Alexandre (Dr). 1983. Revue de zoologie africaine (Rev. Zool. Afr.; Tervuren, Belgique) 97: p 886-895.  
Xenoglaux loweryi Long-whiskered Owlet See genus citation.
Micrathene whitneyi Elf Owl Cooper, James Graham. 1861. Proceedings of the California Academy of Sciences (Proc. Cal. Acad. Sci.; Series 1) 2: p 118.  
Athene noctua Little Owl Scopoli, Giovanni Antonio. 1769. Annus I-(V) Historico-Naturalis (Annus I Hist.-Nat.): p 22.  
Athene brama Spotted Owlet, Spotted Little Owl  
Athene cunicularia Burrowing Owl
Formerly Speotyto cunicularia
Molina, Giovanni Ignazio [Juan Ignazio]. 1782. Saggio sulla storia naturale del Chile (Saggio Storia Nat. Chile): p. 263.  
Aegolius acadicus Northern Saw-whet Owl Gmelin, Johann Friedrich. 1788. Systema Naturae (Syst. Nat.) 1: Pt.1, p 296.  
Aegolius ridgwayi Unspotted Saw-whet Owl
Originally placed in genus Cryptoglaux
Alfaro, Anastasio. 1905. Proceedings of the Biological Society of Washington (Proc. Biol. Soc. Wash.) 18: p 217.  
Ninox rufa Rufous Owl Gould, John. 1846. Proceedings of the Zoological Society of London (PZS): Pt.14, no. 156, p 18.  
Ninox strenua Powerful Owl, Great Hawk Owl Gould, John. 1838. A synopsis of the birds of Australia, and the adjacent islands (Syn. Birds Austr.): Pt. 3, pl. 47, fig. 2.  
Ninox rudolfi Sumba Boobook Owl Meyer, Adolph Bernhard. 1882. Ibis, 4th Series, vol. 6: p 232, pl.6.  
Ninox japonica Oriental Hawk Owl
Now considered a subspecies of Ninox scutulata
Temminck, Coenraad Jacob, & Schlegel, Hermann. 1845. Fauna Japonica, sive descriptio Animalium, quae in itinere per Japoniam...suscepto, annis 1823-30 collegit, notis, observaionibus et adumbrationibus illustravit P. F. de Sieboldt. Conjunctis studiis C. J. Temminck et H. Schlegel pro Vertebratis atque W. de Haan pro Invertibratis elaborata (Fauna Jap. Aves [Sieboldt]): p 28, pl. 9B.
Ninox affinis Andaman Hawk Owl Beavan, Robert C. 1867. Ibis, New Series, vol. 3: p 316.  
Ninox philippensis Philippine Hawk Owl
Ninox mindorensis Mindoro Hawk Owl
Also called Ninox plateni, formerly considered a subspecies of Ninox philippensis
Ogilvie-Grant, Robert William. 1896. Ibis, 7th Series, vol. 2: p 463. N. plateni: Hartlaub, Gustav. 1899. Abhandlungen der Naturwissenschaftlicher Verein zu Bremen 16: p 271.  
Ninox ochracea Ochre-bellied Hawk Owl
Formerly Ninox perversa
Schlegel, Hermann. 1866. Nederlandsch Tijdschrift voor de Dierkunde (Nederl. Tijdschr. Dierk.) 3: p 183.  
Ninox ios Cinnabar Hawk Owl Rasmussen, Pamela. 1999. Wilson Bulletin 111: p 457-464. See Lee, R.J., and J. Riley. 2001. Morphology, plumage, and habitat of the newly described Cinnabar Hawk-Owl from North Sulawesi, Indonesia. Wilson Bulletin 113(1): pp 17-22.
Ninox squamipila Moluccan Hawk Owl, Indonesian Hawk Owl Bonaparte, Charles Lucien Jules Laurent. 1850. Conspectus generum avium (Consp. Gen. Av.) 1: p 41.
Ninox hypogramma Moluccan Hawk Owl
Now considered a subspecies of Ninox squamipila
Gray, George Robert. 1861. Proceedings of the Scientific Meetings of the Zoological Society of London (1860) (PZS): Pt. (28) 3, p 344.  
Ninox natalis Christmas Island Hawk Owl
Formerly a subspecies of Ninox squamipila
Lister, JJ. 1889. Proceedings of the Scientific Meetings of the Zoological Society of London for the Year 1888 (PZS): Pt. 4, p 525.  
Ninox theomacha Sooty-backed Hawk Owl, Jungle Hawk Owl, Chesnut Hawk Owl, Brown Owl Bonaparte, Charles Lucien Jules Laurent. 1855. Comptes Rendus Hebdomadaire des Seances de l'Academie des Sciences [Paris] (Compt. Rend.) 41: p 654.
Ninox meeki Admiralty Islands Hawk Owl, Manus Hawk Owl  
Ninox punctulata Speckled Hawk Owl  
Ninox variegata Bismarck Hawk Owl, New Ireland Hawk Owl
Formerly Ninox solomonis
 
Ninox odiosa New Britain Hawk Owl, Russet Hawk Owl Sclater, Philip Lutley. 1877. Proceedings of the Scientific Meetings of the Zoological Society of London for the Year (?) (PZS): Pt. 1, p 108.  
Ninox jacquinoti Solomon Islands Hawk Owl
Also spelled jacquinota
Bonaparte, Charles Lucien Jules Laurent. 1850. Conspectus generum avium (Consp. Gen. Av.) 1: p 42.
Uroglaux dimorpha New Guinea Hawk Owl, Papuan Hawk Owl Salvadori, Tommaso. 1874. Annali del Museo Civico di Storia Naturale di Genova (Ann. Mus. Civ. Stor. Nat. Genova) 6: p 308.  
Sceloglaux albifacies Laughing Owl, White-faced Owl Gray, George Robert. 1844. (The) zoology of the voyage of H.M.S. Erebus and Terror, during the years 1839-43 (Voy. Erebus Terror 1 Birds): p 2, pl. 1.  
Pseudoscops grammicus Jamaican Owl Gosse, Philip Henry. 1847. The birds of Jamaica (Birds Jamaica): p 19  
Asio clamator Striped Owl
Originally placed in genera Rhinoptynx and Pseudoscops
 
Asio stygius Stygian Owl
Originally described as Nyctalops
Wagler, Johann Georg. 1832. Isis, oder Encyclopaedische Zeitung, von Oken 25 (1817-1848 Jena): Col. 1221. (Refer to Otus trichopsis for more detail)  
Asio abyssinicus Abyssinian Long-eared Owl  
Asio madagascariensis Madagascar Long-eared Owl Smith, Sir [Dr.] Andrew. 1834. South African Quarterly Journal (S. Afr. Q. J) (2): p 316. Edited at the South African Institution. (Second Series).  
Nesasio solomonensis Fearful Owl  
Ninox burhani Togian Hawk Owl (INDRAWAN & SOMADIKARTA) 2004, The Bulletin of the British Ornithologists' Club, 124, pages 160-171
Tyto | Phodilus | Otus | Megascops | Pyrroglaux | Gymnoglaux | Ptilopsis | Mimizuku | Bubo | Scotopelia | Strix | Jubula | Lophostrix | Pulsatrix | Surnia | Glaucidium | Xenoglaux | Micrathene | Athene | Aegolius | Ninox | Uroglaux | Sceloglaux | Pseudoscops | Asio | Nesasio