List of Strigiformes by population

This list is not comprehensive, as not all Strigiformes have had their numbers quantified. For a simple list of all owl species, see the article "List of owl species".

Extinct species:

• Bermuda saw-whet owl, described from fossil records and explorer accounts of the bird in the 17th century.^[1]
• Laughing owl, last seen in 1914.^[2]
• Mauritius scops owl, last seen 1837 and certainly extinct by 1859.^[3]
• Réunion scops owl, went extinct in the 17th century after the colonization of the island of Réunion.^[4]
• Rodrigues scops owl, last recorded in 1726.^[5]

Species by global population

Common name	Binomial name	Population	Status	Trend	Notes	Image
Abyssinian owl	Asio abyssinicus	?[6]	LC[6]	[6]
African barred owlet	Glaucidium capense	?[7]	LC[7]	[7]
African grass-owl	Tyto capensis	?[8]	LC[8]	[8]
African scops owl	Otus senegalensis	?[9]	LC[9]	[9]
African wood owl	Strix woodfordii	?[10]	LC[10]	[10]
Akun eagle-owl	Ketupa leucosticta	?[11]	LC[11]	[11]
Albertine owlet	Glaucidium albertinum	2,500-9,999[12]	NT[12]	[12]
Alor bookbook	Ninox plesseni	?[13]	LC[13]	[13]
Amazonian Pygmy-owl	Glaucidium hardyi	?[14]	LC[14]	[14]
Andaman boobook	Ninox affinis	2,500-9,999[15]	LC[15]	[15]
Andaman scops owl	Otus balli	?[16]	LC[16]	[16]
Andean pygmy owl	Glaucidium jardinii	?[17]	LC[17]	[17]
Anjouan scops owl	Otus capnodes	2,300-3,600[18]	EN[18]	[18]
Annobon scops owl	Otus feae	50-249[19]	CR[19]	[19]
Arabian eagle-owl	Bubo milesi	4,000-9,999[20]	LC[20]	[20]
Arabian scops owl	Otus pamelae	60,000[21]	LC[21]	[21]
Ashy-faced owl	Tyto glaucops	?[22]	LC[22]	[22]
Asian barred owlet	Glaucidium cucoloides	?[23]	LC[23]	[23]
Austral pygmy owl	Glaucidium nana	?[24]	LC[24]	[24]
Australian boobook	Ninox boobook	?[25]	LC[25]	[25]
Australian masked owl	Tyto novaehollandiae	?[26]	LC[26]	[26]
Baja pygmy owl	Glaucidium hoskinsii	?[27]	LC[27]	[27]
Balsas screech owl	Megascops seductus	20,000 – 49,999[28]	LC[28]	[28]
Band-bellied owl	Pulsatrix melanota	?[29]	LC[29]	[29]
Banggai scops owl	Otus mendeni	10,000-40,000[30]	NT[30]	[30]
Bare-legged owl	Margarobyas lawrencii	?[31]	LC[31]	[31]
Bare-shanked screech owl	Megascops clarkii	20,000-49,999[32]	LC[32]	[32]
Barking owl	Ninox connivens	?[33]	LC[33]	[33]
Barn owl	Tyto alba	4,000,000-9,999,999[34]	LC[34]	[34]	Includes all subspecies
Barred eagle-owl	Bubo sumatranus	?[35]	NT[35]	[35]
Barred owl	Strix varia	?[36]	LC[36]	[36]
Bearded screech owl	Megascops barbarus	20,000 – 49,999[37]	LC[37]	[37]
Biak scops owl	Otus beccarii	15,000-45,000[38]	NT[38]	[38]
Black-and-white owl	Strix nigrolineata	?[39]	LC[39]	[39]
Black-banded owl	Ciccaba huhula	?[40]	LC[40]	[40]
Black-capped screech owl	Megascops atricapilla	?[41]	LC[41]	[41]
Blakiston's fish owl	Ketupa blakistoni	1,000-2,499[42]	EN[42]	[42]	This subspecies is included under Bubo blakistoni.[42]
Boreal owl	Aegolius funereus	730,000-1,810,000[43]	LC[43]	[43]
Brown boobook	Ninox scutulata	?[44]	LC[44]	[44]
Brown fish owl	Ketupa zeylonensis	?[45]	LC[45]	[45]
Brown wood owl	Strix leptogrammica	?[46]	LC[46]	[46]
Buff-fronted owl	Aegolius harrisii	?[47]	LC[47]	[47]
Buffy fish owl	Ketupa ketupu	?[48]	LC[48]	[48]
Burrowing owl	Athene cunicularia	?[49]	LC[49]	[49]
Buru boobook	Ninox hantu	?[50]	LC[50]	[50]
Camiguin boobook	Ninox leventisi	250-1,400[51]	VU[51]	[51]
Cape eagle-owl	Bubo capensis	?[52]	LC[52]	[52]
Cebu boobook	Ninox rumseyi	250-999[53]	VU[53]	[53]
Central American pygmy owl	Glaucidium griseiceps	?[54]	LC[54]	[54]
Chaco owl	Strix chacoensis	?[55]	NT[55]	[55]
Chestnut-backed owlet	Glaucidium castanonotum	10,000-19,999[56]	NT[56]	[56]
Chocolate boobook	Ninox randi	?[57]	NT[57]	[57]
Christmas boobook	Ninox natalis	1000[58]	VU[58]	[58]
Cinnabar boobook	Ninox ios	?[59]	LC[59]	[59]
Cinnamon screech owl	Megascops petersoni	?[60]	LC[60]	[60]
Cloud-forest pygmy owl	Glaucidium nubicola	1,500-7,000[61]	VU[61]	[61]
Cloud-forest screech owl	Megascops marshalli	?[62]	NT[62]	[62]
Colima pygmy owl	Glaucidium palmarum	20,000 – 49,999[63]	LC[63]	[63]
Collared owlet	Glaucidium brodiei	10,000,000+[64]	LC[64]	[64]
Collared scops owl	Outs lettia	?[65]	LC[65]	[65]
Colombian screech owl	Megascops colombianus	6,700[66]	NT[66]	[66]
Congo bay owl	Phodilus prigoginei	2,500-9,999[67]	EN[67]	[67]
Costa Rican pygmy owl	Glaucidium costaricanum	?[68]	LC[68]	[68]
Crested owl	Lophostrix cristata	?[69]	LC[69]	[69]
Cuban pygmy owl	Glaudicium siju	?[70]	LC[70]	[70]
Cyprus scops owl	Otus cyprius	10,000-24,000[71]	LC[71]	[71]
Desert owl	Strix hadorami	?[72]	LC[72]	[72]
Dusky eagle-owl	Bubo coromandus	?[73]	LC[73]	[73]
East Brazilian pygmy owl	Glaucidium minutissimum	?[74]	LC[74]	[74]
Eastern screech owl	Megascops asio	560,000[75]	LC[75]	[75]
Elf owl	Micrathene whitneyi	72,000[76]	LC[76]	[76]
Enggano scops owl	Otus enganensis	2,500-9,999[77]	LC[77]	[77]
Eurasian eagle-owl	Bubo bubo	100,000-499,999[78]	LC[78]	[78]
Eurasian pygmy owl	Glaucidium passerinum	500,000-1,199,999[79]	LC[79]	[79]
Eurasian scops owl	Otus scops	790,000-1,350,000[80]	LC[80]	[80]
Everett's scops owl	Otus everetti	?[81]	LC[81]	[81]
Fearful owl	Nesasio solomonensis	2,500-9,999[82]	NT[82]	[82]
Ferruginous pygmy owl	Glaucidium brasilianum	20,000,000[83]	LC[83]	[83]
Flammulated owl	Psiloscops flammeolus	?[84]	LC[84]	[84]
Flores scops owl	Otus alfredi	250-2,499[85]	EN[85]	[85]
Forest owlet	Heteroglaux blewitti	250-999[86]	EN[86]	[86]
Fraser's eagle-owl	Bubo poensis	?[87]	LC[87]	[87]
Fulvous owl	Strix fulvescens	?[88]	LC[88]	[88]
Giant scops owl	Otus gurneyi	2,500-9,999[89]	VU[89]	[89]
Golden masked owl	Tyto aurantia	2,500-9,999[90]	VU[90]	[90]
Great grey owl	Strix nebulosa	50,000-99,999[91]	LC[91]	[91]
Great horned owl	Bubo virginianus	?[92]	LC[92]	[92]
Greater sooty owl	Tyto tenebricosa	?[93]	LC[93]	[93]
Greyish eagle-owl	Bubo cinerascens	?[94]	LC[94]	[94]
Guatemalan pygmy owl	Glaucidium cobanense	?[95]	LC[95]	[95]
Halmahera boobook	Ninox hypogramma	?[96]	LC[96]	[96]
Himalayan owl	Strix nivicolum	?[97]	LC[97]	[97]
Hume's boobook	Ninox obscura	?[98]	LC[98]	[98]
Indian eagle-owl	Bubo bengalensis	?[99]	LC[99]	[99]
Indian scops-owl	Otus bakkamoena	?[100]	LC[100]	[100]
Itombwe owl	Phodilus prigoginei	2,500-9,999[101]	EN[101]	[101]
Jamaican owl	Pseudoscops grammicus	?[102]	LC[102]	[102]
Japanese scops owl	Otus semitorques	?[103]	LC[103]	[103]
Javan owlet	Glacidium castanopterum	?[104]	LC[104]	[104]
Javan scops owl	Otus angelinae	1,500-7,000[105]	VU[105]	[105]
Jungle owlet	Glaucidium radiatum	?[106]	LC[106]	[106]
Karthala scops owl	Otus pauliani	2,300[107]	EN[107]	[107]
Koepcke's screech owl	Megascops koepckeae	?[108]	LC[108]	[108]
Least boobook	Ninox sumbaensis	10,000-19,999[109]	EN[109]	[109]
Lesser horned owl	Bubo magellanicus	?[110]	LC[110]	[110]
Lesser sooty owl	Tyto multipunctata	4,000[111]	LC[111]	[111]	Estimated to be around 2,000 breeding pairs[112]
Little owl	Athene noctua	5,000,000-9,999,999[113]	LC[113]	[113]
Long-eared owl	Asio otus	2,200,000-3,700,000[114]	LC[114]	[114]
Long-tufted screech owl	Megascops sanctaecatarinae	?[115]	LC[115]	[115]
Long-whiskered owlet	Xenoglaux loweryi	250-999[116]	VU[116]	[116]
Luzon boobook	Ninox philippensis	?[117]	LC[117]	[117]
Luzon scops owl	Otus longicornis	?[118]	NC[118]	[118]
Madagascar owl	Asio madagascariensis	?[119]	LC[119]	[119]
Makira Boobook	Ninox roseoaxillaris	2,500-9,999[120]	VU[120]	[120]
Malaita Boobook	Ninox malaitae	2,500-9,999[121]	VU[121]	[121]
Mantanani scops owl	Otus mantananensis	?[122]	LC[122]	[122]
Maned owl	Jubula lettii	?[123]	DD[123]	[123]
Manus boobook	Ninox meeki	?[124]	LC[124]	[124]
Manus masked owl	Tyto manusi	?[125]	LC[125]	[125]	This subspecies is included under Tyto novaehollandiae. Population estimates are not given.[125]
Marsh owl	Asio capensis	?[126]	LC[126]	[126]
Mayotte scops owl	Otus mayottensis	?[127]	LC[127]	[127]
Mentawai scops owl	Otus mentawi	10,000-19,999[128]	LC[128]	[128]
Middle American screech owl	Megascops guatemalae	?[129]	LC[129]	[129]
Minahasa masked owl	Tyto inexspectata	?[130]	LC[130]	[130]
Mindanao boobook	Ninox spilocephala	?[131]	NT[131]	[131]
Mindanao scops owl	Outs mirus	?[132]	LC[132]	[132]
Mindoro boobook	Ninox mindorensis	2,500-9,999[133]	VU[133]	[133]
Mindoro scops owl	Otus mindorensis	10,000-19,999[134]	NT[134]	[134]
Moheli scops owl	Otus moheliensis	260[135]	EN[135]	[135]
Moluccan masked owl	Tyto novaehollandiae	?[136]	LC[136]	[136]
Moluccan scops owl	Otus magicus	?[137]	LC[137]	[137]
Morepork	Ninox novaeseelandiae	?[138]	LC[138]	[138]
Mottled owl	Strix virgata	?[139]	LC[139]	[139]
Mottled wood owl	Strix ocellata	?[140]	LC[140]	[140]
Mountain pygmy owl	Glaucidium gnoma	?[141]	LC[141]	[141]
Mountain scops owl	Otus spilocephalus	?[142]	LC[142]	[142]
Negros scops owl	Otus nigrorum	1,000-2,499[143]	VU[143]	[143]
New Britain boobook	Ninox odiosa	10,000-19,999[144]	VU[144]	[144]
New Ireland boobook	Ninox variegata	?[145]	LC[145]	[145]
Nicobar scops owl	Otus alius	2,500-9,999[146]	NT[146]	[146]
Northern boobook	Ninox japonica	?[147]	LC[147]	[147]
Northern hawk-owl	Surnia ulula	100,000-499,999[148]	LC[148]	[148]
Northern pygmy owl	Glaucidium californicum	?[149]	LC[149]	[149]
Northern saw-whet owl	Aegolius acadicus	2,000,000[150]	LC[150]	[150]
Northern white-faced owl	Ptilopsis leucotis	?[151]	LC[151]	[151]
Ochre-bellied boobook	Ninox ochracea	10,000-19,999[152]	NT[152]	[152]
Omani owl	Strix butleri	?[153]	LC[153]	[153]
Oriental bay owl	Phodilus badius	?[154]	LC[154]	[154]
Oriental scops owl	Otus sunia	?[155]	LC[155]	[155]
Pacific pygmy owl	Glaucidium peruanum	?[156]	LC[156]	[156]
Pacific screech owl	Megascops cooperi	50,000-499,999[157]	LC[157]	[157]
Palawan scops owl	Otus fuliginosus	10,000-19,999[158]	LC[158]	[158]
Pallid scops owl	Otus brucei	?[159]	LC[159]	[159]
Pemba scops owl	Otus pembaensis	3,000[160]	VU[160]	[160]
Pernambuco pygmy owl	Glaucidium mooreorum	0-49[161]	CR[161]	[161]	Maximum estimate; possibly extinct.[161]
Philippine eagle-owl	Bubo philippensis	2,500-9,999[162]	VU[162]	[162]
Powerful owl	Ninox strenua	2,200-2,800[163]	LC[163]	[163]
Principe Scops-owl	Otus bikegila	1,149-1,597[164]	CR[164]	[164]
Red owl	Tyto soumagnei	2,500-9,999[165]	VU[165]	[165]
Rote Boobook	Ninox rotiensis	500-5,000[166]	NT[166]	[166]
Rufescent screech-owl	Megascops ingens	?[167]	LC[167]	[167]
Rufous fishing owl	Scotopelia ussheri	2,500-9,999[168]	VU[168]	[168]
São Tomé scops owl	Otus hartlaubi	250-999[169]	VU[169]	[169]
Serendib scops owl	Otus thilohoffmanni	150-700[170]	EN[170]	[170]
Seychelles Scops-owl	Otus insularis	200-280[171]	CR[171]	[171]
Shelley's eagle-owl	Bubo shelleyi	1,500-7,000[172]	VU[172]	[172]
Short-eared owl	Asio flammeus	1,200,000-2,100,000[173]	LC[173]	[173]
Siau scops owl	Otus siaoensis	1-49[174]	CR[174]	[174]
Simeulue scops owl	Otus umbra	? [175]	LC[175]	[175]
Snowy owl	Bubo scandiaca	14,000-28,000[176]	VU[176]	[176]
Sokoke scops owl	Otus ireneae	2,500-9,999[177]	EN[177]	[177]
Spectacled owl	Pulsatrix perspicillata	?[178]	LC[178]	[178]
Spotted owl	Strix occidentalis	15,000[179]	NT[179]	[179]
Striped owl	Pseudoscops clamator	500,000-4,999,999[180]	LC[180]	[180]
Stygian owl	Asio stygius	?[181]	LC[181]	[181]
Sula scops-owl	Otus sulaensis	?[182]	NT[182]	[182]
Sumba boobook	Ninox rudolfi	6,000-15,000[183]	NT[183]	[183]
Taliabu masked owl	Tyto nigrobrunnea	250-999[184]	VU[184]	?[184]
Tamaulipas pygmy owl	Glaucidium sanchezi	20,000 – 49,999[185]	NT[185]	[185]
Tanimbar bookbook	Ninox forbesi	12,000 – 48,000[186]	LC[186]	[186]
Tawny owl	Strix aluco	1,000,000-2,999,999[187]	LC[187]	[187]
Timor bookbook	Ninox fusca	? [188]	LC[188]	[188]
Togian boobook	Ninox burhani	1,500-7,000[189]	NT[189]	[189]
Unspotted saw-whet owl	Aegolius ridgwayi	?[190]	LC[190]	[190]
Ural owl	Strix uralensis	640,000-1,052,000[191]	LC[191]	[191]
Usambara eagle-owl	Bubo vosseleri	?[192]	LC[192]	[192]	This subspecies is included under Bubo poensis.[192]
White-fronted scops owl	Otus sagittatus	2,500-9,999[193]	VU[193]	[193]
White-throated screech-owl	Megascops albogularis	?[194]	LC[194]	[194]

See also

• Lists of birds by population
• Lists of organisms by population

References

1. Hume, Julian P. (24 August 2017). Extinct Birds. ISBN 978-1-4729-3745-2.
2. "Ninox albifacies". IUCN Red List of Threatened Species. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689496A93232295.en.
3. "Mascarenotus sauzieri". IUCN Red List of Threatened Species. doi:10.2305/IUCN.UK.2016-3.RLTS.T22728861A94999192.en.
4. "Mascarenotus grucheti". IUCN Red List of Threatened Species. doi:10.2305/IUCN.UK.2017-3.RLTS.T22728866A119424909.en.
5. "Mascarenotus murivorus". IUCN Red List of Threatened Species. doi:10.2305/IUCN.UK.2016-3.RLTS.T22728856A94999047.en.
6. "Asio abyssinicus. The IUCN Red List of Threatened Species 2016: e.T22689512A93233846". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689512A93233846.en.{{cite iucn}}: |date= / |doi= mismatch (help)
7. BirdLife International. (2017) [amended version of 2016 assessment]. "Glaucidium capense". IUCN Red List of Threatened Species. 2017: e.T22689290A111870445. doi:10.2305/IUCN.UK.2017-1.RLTS.T22689290A111870445.en. Retrieved 1 July 2024.
8. "BirdLife International. 2016. Tyto capensis. The IUCN Red List of Threatened Species 2016: e.T22688514A93199287". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688514A93199287.en.{{cite iucn}}: |date= / |doi= mismatch (help)
9. "BirdLife International. 2016. Otus senegalensis. The IUCN Red List of Threatened Species 2016: e.T61914670A95183137". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61914670A95183137.en.{{cite iucn}}: |date= / |doi= mismatch (help)
10. "BirdLife International. 2016. Strix woodfordii. The IUCN Red List of Threatened Species 2016: e.T22689166A93220349". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689166A93220349.en.{{cite iucn}}: |date= / |doi= mismatch (help)
11. "BirdLife International. 2018. Bubo leucostictus. The IUCN Red List of Threatened Species 2018: e.T22688996A130156693". IUCN Red List of Threatened Species. 2018-08-06. 2018-08-06. doi:10.2305/IUCN.UK.2018-2.RLTS.T22688996A130156693.en.{{cite iucn}}: |date= / |doi= mismatch (help)
12. "Glaucidium albertinum: BirdLife International: The IUCN Red List of Threatened Species 2022: e.T22689310A208604278". IUCN Red List of Threatened Species. 2021-10-05. 2021-10-05. doi:10.2305/iucn.uk.2022-1.rlts.t22689310a208604278.en.{{cite iucn}}: |date= / |doi= mismatch (help)
13. "Ninox plesseni: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T230087117A233595835". IUCN Red List of Threatened Species. 2023-05-22. 2023-05-22. doi:10.2305/IUCN.UK.2023-1.RLTS.T230087117A233595835.en.{{cite iucn}}: |date= / |doi= mismatch (help)
14. "BirdLife International. 2018. Glaucidium hardyi. The IUCN Red List of Threatened Species 2018: e.T22689234A130162570". IUCN Red List of Threatened Species. 2018-08-06. 2018-08-06. doi:10.2305/IUCN.UK.2018-2.RLTS.T22689234A130162570.en.{{cite iucn}}: |date= / |doi= mismatch (help)
15. "BirdLife International. 2017. Ninox affinis. The IUCN Red List of Threatened Species 2017: e.T22689420A118443805". IUCN Red List of Threatened Species. 2017-10-01. 2017-10-01. doi:10.2305/IUCN.UK.2017-3.RLTS.T22689420A118443805.en.{{cite iucn}}: |date= / |doi= mismatch (help)
16. "BirdLife International. 2017. Otus balli. The IUCN Red List of Threatened Species 2017: e.T22688573A118257284". IUCN Red List of Threatened Species. 2017-10-01. 2017-10-01. doi:10.2305/IUCN.UK.2017-3.RLTS.T22688573A118257284.en.{{cite iucn}}: |date= / |doi= mismatch (help)
17. "BirdLife International. 2016. Glaucidium jardinii. The IUCN Red List of Threatened Species 2016: e.T22689222A93223061". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689222A93223061.en.{{cite iucn}}: |date= / |doi= mismatch (help)
18. "Otus capnodes: BirdLife International: The IUCN Red List of Threatened Species 2017: e.T22688686A119090936". IUCN Red List of Threatened Species. 2017-10-01. 2017-10-01. doi:10.2305/iucn.uk.2017-3.rlts.t22688686a119090936.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
19. BirdLife International. (2018) [amended version of 2017 assessment]. "Otus feae". IUCN Red List of Threatened Species. 2018: e.T61915272A125407816. doi:10.2305/IUCN.UK.2017-1.RLTS.T61915272A125407816.en. Retrieved 1 July 2024.
20. "BirdLife International. 2022. Bubo milesi. The IUCN Red List of Threatened Species 2022: e.T216709635A217222538". IUCN Red List of Threatened Species. 2022-05-23. 2022-05-23.
21. BirdLife International. (2017) [amended version of 2016 assessment]. "Otus pamelae". IUCN Red List of Threatened Species. 2017: e.T61915442A113016319. doi:10.2305/IUCN.UK.2017-1.RLTS.T61915442A113016319.en. Retrieved 1 July 2024.
22. "BirdLife International. 2016. Tyto glaucops. The IUCN Red List of Threatened Species 2016: e.T22688511A93199076". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688511A93199076.en.{{cite iucn}}: |date= / |doi= mismatch (help)
23. "BirdLife International. 2016. Glaucidium cuculoides. The IUCN Red List of Threatened Species 2016: e.T22689277A93224900". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689277A93224900.en.{{cite iucn}}: |date= / |doi= mismatch (help)
24. "BirdLife International. 2016. Glaucidium nana. The IUCN Red List of Threatened Species 2016: e.T22689258A93224043". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689258A93224043.en.{{cite iucn}}: |date= / |doi= mismatch (help)
25. "BirdLife International. 2023. Ninox boobook. The IUCN Red List of Threatened Species 2023: e.T230075506A233533676". IUCN Red List of Threatened Species. 2023-05-04. 2023-05-04. doi:10.2305/IUCN.UK.2023-1.RLTS.T230075506A233533676.en.{{cite iucn}}: |date= / |doi= mismatch (help)
26. "Tyto novaehollandiae. The IUCN Red List of Threatened Species 2023: e.T230023167A230808865". IUCN Red List of Threatened Species. 2023-03-30. 2023-03-30. doi:10.2305/IUCN.UK.2023-1.RLTS.T230023167A230808865.en.{{cite iucn}}: |date= / |doi= mismatch (help)
27. "Glaucidium hoskinsii. The IUCN Red List of Threatened Species 2016: e.T61791676A95181434". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61791676A95181434.en.{{cite iucn}}: |date= / |doi= mismatch (help)
28. "Megascops seductus: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22724664A167847049". IUCN Red List of Threatened Species. 2020-02-07. 2020-02-07. doi:10.2305/iucn.uk.2021-3.rlts.t22724664a167847049.en.{{cite iucn}}: |date= / |doi= mismatch (help)
29. "Pulsatrix melanota. The IUCN Red List of Threatened Species 2018: e.T22689183A130161594". IUCN Red List of Threatened Species. 2018-08-07. 2018-08-07. doi:10.2305/IUCN.UK.2018-2.RLTS.T22689183A130161594.en.{{cite iucn}}: |date= / |doi= mismatch (help)
30. "Otus mendeni. The IUCN Red List of Threatened Species 2023: e.T62290488A209661225". IUCN Red List of Threatened Species. 2023-06-24. 2023-06-24. doi:10.2305/IUCN.UK.2023-1.RLTS.T62290488A209661225.en.{{cite iucn}}: |date= / |doi= mismatch (help)
31. "Margarobyas lawrencii". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688883A93210507.en.{{cite iucn}}: |date= / |doi= mismatch (help)
32. "Megascops clarkii". IUCN Red List of Threatened Species. 2022-07-14. 2022-07-14. doi:10.2305/IUCN.UK.2022-2.RLTS.T22688799A167851776.en.{{cite iucn}}: |date= / |doi= mismatch (help)
33. "Ninox connivens". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689394A93229752.en.{{cite iucn}}: |date= / |doi= mismatch (help)
34. BirdLife International. (2019) [amended version of 2016 assessment]. "Tyto alba". IUCN Red List of Threatened Species. 2019: e.T22688504A155542941. doi:10.2305/IUCN.UK.2019-3.RLTS.T22688504A155542941.en. Retrieved 1 July 2024.
35. "Bubo sumatranus". IUCN Red List of Threatened Species. doi:10.2305/IUCN.UK.2022-1.RLTS.T22688976A207944973.en.
36. "Strix varia". IUCN Red List of Threatened Species. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689094A93217844.en.
37. "Megascops barbarus: BirdLife International: The IUCN Red List of Threatened Species 2020: e.T22688807A180130085". IUCN Red List of Threatened Species. 2020-07-27. 2020-07-27. doi:10.2305/iucn.uk.2020-3.rlts.t22688807a180130085.en.{{cite iucn}}: |date= / |doi= mismatch (help)
38. "Otus beccarii: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T22724754A223084666". IUCN Red List of Threatened Species. 2023-02-20. 2023-02-20. doi:10.2305/IUCN.UK.2023-1.RLTS.T22724754A223084666.en.{{cite iucn}}: |date= / |doi= mismatch (help)
39. "Ciccaba nigrolineata: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22689133A130159025". IUCN Red List of Threatened Species. 2018-08-06. 2018-08-06. doi:10.2305/iucn.uk.2018-2.rlts.t22689133a130159025.en.{{cite iucn}}: |date= / |doi= mismatch (help)
40. "Ciccaba huhula". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689144A93219904.en.{{cite iucn}}: |date= / |doi= mismatch (help)
41. "Megascops atricapilla". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22731897A95038543.en.{{cite iucn}}: |date= / |doi= mismatch (help)
42. "Bubo blakistoni: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689007A93214159". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689007a93214159.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
43. "Aegolius funereus: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22689362A201898946". IUCN Red List of Threatened Species. 2021-05-25. 2021-05-25. doi:10.2305/iucn.uk.2021-3.rlts.t22689362a201898946.en.{{cite iucn}}: |date= / |doi= mismatch (help)
44. "Ninox scutulata". IUCN Red List of Threatened Species. 2021-08-12. 2021-08-12. doi:10.2305/IUCN.UK.2021-3.RLTS.T22725643A200685229.en.{{cite iucn}}: |date= / |doi= mismatch (help)
45. "Ketupa zeylonensis". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689012A90010491.en.{{cite iucn}}: |date= / |doi= mismatch (help)
46. "Strix leptogrammica". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689071A93217052.en.{{cite iucn}}: |date= / |doi= mismatch (help)
47. "Aegolius harrasii". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689378A93229112.en.{{cite iucn}}: |date= / |doi= mismatch (help)
48. "Ketupa ketupu". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689024A93214791.en.{{cite iucn}}: |date= / |doi= mismatch (help)
49. "Athene cunicularia". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689353A93227732.en.{{cite iucn}}: |date= / |doi= mismatch (help)
50. "Ninox hantu". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22727909A94965479.en.{{cite iucn}}: |date= / |doi= mismatch (help)
51. "Ninox leventisi". IUCN Red List of Threatened Species. 2021-10-02. 2021-10-02. doi:10.2305/IUCN.UK.2022-1.RLTS.T22725512A208503262.en.{{cite iucn}}: |date= / |doi= mismatch (help)
52. "Bubo capensis". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688944A93212047.en.{{cite iucn}}: |date= / |doi= mismatch (help)
53. "Ninox rumseyi". IUCN Red List of Threatened Species. 2021-10-11. 2021-10-11. doi:10.2305/IUCN.UK.2022-1.RLTS.T22725505A208960267.en.{{cite iucn}}: |date= / |doi= mismatch (help)
54. "Glaucidium griseiceps: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22729012A95003178". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22729012a95003178.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
55. "Strix chacoensis". IUCN Red List of Threatened Species. 2018-08-07. 2018-08-07. doi:10.2305/IUCN.UK.2020-3.RLTS.T22733306A177165960.en.{{cite iucn}}: |date= / |doi= mismatch (help)
56. "Glaucidium castanotum: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689286A93225535". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689286a93225535.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
57. "Ninox randi". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22726321A94918597.en.{{cite iucn}}: |date= / |doi= mismatch (help)
58. "Ninox natalis: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689452A93230899". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689452a93230899.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
59. "Ninox ios: BirdLife International: The IUCN Red List of Threatened Species 2022: e.T22728610A207662764". IUCN Red List of Threatened Species. 2021-09-10. 2021-09-10. doi:10.2305/iucn.uk.2022-1.rlts.t22728610a207662764.en.{{cite iucn}}: |date= / |doi= mismatch (help)
60. "Megascops pertersoni". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688840A93209725.en.{{cite iucn}}: |date= / |doi= mismatch (help)
61. "Glaucidium nubicola: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22724604A94873667". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22724604a94873667.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
62. "Megascops marshalli". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688847A93209893.en.{{cite iucn}}: |date= / |doi= mismatch (help)
63. "Glaucidium palmarum: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22729019A152211515". IUCN Red List of Threatened Species. 2020-02-07. 2020-02-07. doi:10.2305/iucn.uk.2021-3.rlts.t22729019a152211515.en.{{cite iucn}}: |date= / |doi= mismatch (help)
64. "Glaucidium brodiei". IUCN Red List of Threatened Species. 2021-08-11. 2021-08-11. doi:10.2305/IUCN.UK.2021-3.RLTS.T200290653A206387811.en.{{cite iucn}}: |date= / |doi= mismatch (help)
65. "Otus lettia". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2017-3.RLTS.T61855318A118498941.en.{{cite iucn}}: |date= / |doi= mismatch (help)
66. "Megascops colombianus: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22688829A93209510". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22688829a93209510.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
67. "Phodilus prigoginei: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22688529A93199883". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22688529a93199883.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
68. "Glaucidium costaricanum". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22729005A95003007.en.{{cite iucn}}: |date= / |doi= mismatch (help)
69. "Lophostrix cristata: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22689177A130160501". IUCN Red List of Threatened Species. 2018-08-06. 2018-08-06. doi:10.2305/iucn.uk.2018-2.rlts.t22689177a130160501.en.{{cite iucn}}: |date= / |doi= mismatch (help)
70. "Glaucidium siju". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689262A93224271.en.{{cite iucn}}: |date= / |doi= mismatch (help)
71. "Otus cyprius". IUCN Red List of Threatened Species. 2019-07-25. 2019-07-25. doi:10.2305/IUCN.UK.2019-3.RLTS.T155019839A155215276.en.{{cite iucn}}: |date= / |doi= mismatch (help)
72. "Strix hadorami". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2017-1.RLTS.T22689083A112418158.en.{{cite iucn}}: |date= / |doi= mismatch (help)
73. "Bubo coromandus". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688992A93213395.en.{{cite iucn}}: |date= / |doi= mismatch (help)
74. "Glaucidium minutissimum". IUCN Red List of Threatened Species. 2018-08-06. 2018-08-06. doi:10.2305/IUCN.UK.2018-2.RLTS.T22689240A130162980.en.{{cite iucn}}: |date= / |doi= mismatch (help)
75. "Megascops asio". IUCN Red List of Threatened Species. 2019-08-06. 2019-08-06. doi:10.2305/IUCN.UK.2019-3.RLTS.T155660662A152331179.en.{{cite iucn}}: |date= / |doi= mismatch (help)
76. "Micrathene whitneyi". IUCN Red List of Threatened Species. 2020-02-19. 2020-02-19. doi:10.2305/IUCN.UK.2021-3.RLTS.T22689325A168847632.en.{{cite iucn}}: |date= / |doi= mismatch (help)
77. "Otus enganensis: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22724390A226422700". IUCN Red List of Threatened Species. 2023-07-24. 2023-07-24. doi:10.2305/IUCN.UK.2023-1.RLTS.T22724390A226422700.en.{{cite iucn}}: |date= / |doi= mismatch (help)
78. "Bubo bubo: BirdLife International: The IUCN Red List of Threatened Species 2017: e.T22688927A113569670". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2017-1.rlts.t22688927a113569670.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
79. "Glaucidium passerinum: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689194A86868363". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689194a86868363.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
80. "Otus scops: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T155019854A206523296". IUCN Red List of Threatened Species. 2021-08-13. 2021-08-13. doi:10.2305/iucn.uk.2021-3.rlts.t155019854a206523296.en.{{cite iucn}}: |date= / |doi= mismatch (help)
81. "Otus everetti". IUCN Red List of Threatened Species. 2016-10-02. 2016-10-02. doi:10.2305/IUCN.UK.2016-3.RLTS.T22725053A94884958.en.{{cite iucn}}: |date= / |doi= mismatch (help)
82. "Nesasio solomonensis". IUCN Red List of Threatened Species. 2023-07-18. 2023-07-18. doi:10.2305/IUCN.UK.2023-1.RLTS.T22689539A227316153.en.{{cite iucn}}: |date= / |doi= mismatch (help)
83. "Glaucidium brasilianum". IUCN Red List of Threatened Species. 2022-08-15. 2022-08-15.
84. "Psiloscops flammeolus". IUCN Red List of Threatened Species. 2016-10-02. 2016-10-02. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688637A93203659.en.{{cite iucn}}: |date= / |doi= mismatch (help)
85. "Otus alfredi". IUCN Red List of Threatened Species. 2016-10-02. 2016-10-02. doi:10.2305/IUCN.UK.2016-3.RLTS.T22724396A94864662.en.{{cite iucn}}: |date= / |doi= mismatch (help)
86. "Heteroglaux blewitti: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22689335A132251554". IUCN Red List of Threatened Species. 2018-08-06. 2018-08-06. doi:10.2305/iucn.uk.2018-2.rlts.t22689335a132251554.en.{{cite iucn}}: |date= / |doi= mismatch (help)
87. "Fraser's eagle owl". IUCN Red List of Threatened Species. 2016-10-02. 2016-10-02. doi:10.2305/IUCN.UK.2016-3.RLTS.T22730030A95023684.en.{{cite iucn}}: |date= / |doi= mismatch (help)
88. "Strix fulvescens: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689097A93218072". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689097a93218072.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
89. "Otus gurneyi: BirdLife International: The IUCN Red List of Threatened Species 2017: e.T22688911A110372685". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2017-1.rlts.t22688911a110372685.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
90. "Tyto aurantia: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22688470A132059362". IUCN Red List of Threatened Species. 2018-08-09. 2018-08-09. doi:10.2305/iucn.uk.2018-2.rlts.t22688470a132059362.en.{{cite iucn}}: |date= / |doi= mismatch (help)
91. "Strix nebulosa: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22689118A199144259". IUCN Red List of Threatened Species. 2021-03-30. 2021-03-30. doi:10.2305/iucn.uk.2021-3.rlts.t22689118a199144259.en.{{cite iucn}}: |date= / |doi= mismatch (help)
92. "Bubo virginianus". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2018-2.RLTS.T61752071A132039486.en.{{cite iucn}}: |date= / |doi= mismatch (help)
93. "BirdLife International. 2016. Tyto tenebricosa. The IUCN Red List of Threatened Species 2016". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01.
94. "Bubo cinerascens". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61741660A95178482.en.{{cite iucn}}: |date= / |doi= mismatch (help)
95. "Glaucidium cobanense". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61791597A95181252.en.{{cite iucn}}: |date= / |doi= mismatch (help)
96. "Ninox hypogramma". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22727900A94965298.en.{{cite iucn}}: |date= / |doi= mismatch (help)
97. "Strix nivicolum". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22725477A94893250.en.{{cite iucn}}: |date= / |doi= mismatch (help)
98. "Ninox obscura". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22726328A94918968.en.{{cite iucn}}: |date= / |doi= mismatch (help)
99. "Bubo bengalensis". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688934A93211525.en.{{cite iucn}}: |date= / |doi= mismatch (help)
100. "Otus bakkamoena". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61855263A95182096.en.{{cite iucn}}: |date= / |doi= mismatch (help)
101. "Phodilus prigoginei". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688529A93199883.en.{{cite iucn}}: |date= / |doi= mismatch (help)
102. "Pseudoscops grammicus". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689501A93232472.en.{{cite iucn}}: |date= / |doi= mismatch (help)
103. "Otus semitorques". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61859151A95233778.en.{{cite iucn}}: |date= / |doi= mismatch (help)
104. "Glacidium castanopterum". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689280A93225162.en.{{cite iucn}}: |date= / |doi= mismatch (help)
105. "Otus angelinae: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22688591A93201974". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22688591a93201974.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
106. "Glaucidium radiatum". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689283A93225315.en.{{cite iucn}}: |date= / |doi= mismatch (help)
107. "Otus pauliani: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22688694A179586821". IUCN Red List of Threatened Species. 2020-07-17. 2020-07-17. doi:10.2305/iucn.uk.2021-3.rlts.t22688694a179586821.en.{{cite iucn}}: |date= / |doi= mismatch (help)
108. "Megascops koepckeae". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688782A93208561.en.{{cite iucn}}: |date= / |doi= mismatch (help)
109. "Ninox sumbaensis: BirdLife International: The IUCN Red List of Threatened Species 2017: e.T22730062A118629788". IUCN Red List of Threatened Species. 2017-10-01. 2017-10-01. doi:10.2305/iucn.uk.2017-3.rlts.t22730062a118629788.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
110. "Bubo magellanicus". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61752097A95179224.en.{{cite iucn}}: |date= / |doi= mismatch (help)
111. "BirdLife International. 2016. Tyto multipunctata. The IUCN Red List of Threatened Species 2016: e.T22688435A93197565". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01.
112. Higgins, P. J. (1999). Handbook of Australian, New Zealand and Antarctic birds: parrots to dollarbids. Oxford, U.K.: Oxford University Press.
113. "Athene noctua: BirdLife International: The IUCN Red List of Threatened Species 2019: e.T22689328A155470112". IUCN Red List of Threatened Species. 2018-08-09. 2018-08-09. doi:10.2305/iucn.uk.2019-3.rlts.t22689328a155470112.en.{{cite iucn}}: |date= / |doi= mismatch (help)
114. "Asio otus: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22689507A201150685". IUCN Red List of Threatened Species. 2021-05-07. 2021-05-07. doi:10.2305/iucn.uk.2021-3.rlts.t22689507a201150685.en.{{cite iucn}}: |date= / |doi= mismatch (help)
115. "Megascops sanctaecatarinae". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688874A93210328.en.{{cite iucn}}: |date= / |doi= mismatch (help)
116. "Xenoglaux loweryi: BirdLife International: The IUCN Red List of Threatened Species 2020: e.T22689320A180768478". IUCN Red List of Threatened Species. 2020-08-03. 2020-08-03. doi:10.2305/iucn.uk.2020-3.rlts.t22689320a180768478.en.{{cite iucn}}: |date= / |doi= mismatch (help)
117. "Ninox philippensis". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22725483A94893562.en.{{cite iucn}}: |date= / |doi= mismatch (help)
118. "Otus longicornis". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688602A93202286.en.{{cite iucn}}: |date= / |doi= mismatch (help)
119. "Asio madagascariensis". IUCN Red List of Threatened Species. 2018-08-07. 2018-08-07. doi:10.2305/IUCN.UK.2018-2.RLTS.T22689517A130164463.en.{{cite iucn}}: |date= / |doi= mismatch (help)
120. "Ninox roseoaxillaris". IUCN Red List of Threatened Species. 2023-03-12. 2023-03-12. doi:10.2305/IUCN.UK.2023-1.RLTS.T45449334A157834363.en.{{cite iucn}}: |date= / |doi= mismatch (help)
121. "Ninox malaitae". IUCN Red List of Threatened Species. 2021-10-13. 2021-10-13. doi:10.2305/IUCN.UK.2023-1.RLTS.T45449331A209059576.en.{{cite iucn}}: |date= / |doi= mismatch (help)
122. "Otus mantananensis: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T22688656A226893897". IUCN Red List of Threatened Species. 2023-07-07. 2023-07-07. doi:10.2305/IUCN.UK.2023-1.RLTS.T22688656A226893897.en.{{cite iucn}}: |date= / |doi= mismatch (help)
123. "Jubula lettii". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689173A93220733.en.{{cite iucn}}: |date= / |doi= mismatch (help)
124. "Ninox meeki". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689465A93231357.en.{{cite iucn}}: |date= / |doi= mismatch (help)
125. "Tyto novaehollandiae: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T62172196A132190206". IUCN Red List of Threatened Species. 2018-08-09. 2018-08-09. doi:10.2305/iucn.uk.2018-2.rlts.t62172196a132190206.en.{{cite iucn}}: |date= / |doi= mismatch (help)
126. "Asio capensis". IUCN Red List of Threatened Species. 2021-05-28. 2021-05-28. doi:10.2305/IUCN.UK.2021-3.RLTS.T22689535A202174205.en.{{cite iucn}}: |date= / |doi= mismatch (help)
127. "Otus mayottensis". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22732599A95047769.en.{{cite iucn}}: |date= / |doi= mismatch (help)
128. "Otus mentawi: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T22688713A229809425". IUCN Red List of Threatened Species. 2023-07-24. 2023-07-24. doi:10.2305/IUCN.UK.2023-1.RLTS.T22688713A229809425.en.{{cite iucn}}: |date= / |doi= mismatch (help)
129. "Megascops guatemalae: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T61767847A95179450". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t61767847a95179450.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
130. "Tyto inexspectata: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T22688441A230036968". IUCN Red List of Threatened Species. 2023-07-24. 2023-07-24. doi:10.2305/IUCN.UK.2023-1.RLTS.T22688441A230036968.en.{{cite iucn}}: |date= / |doi= mismatch (help)
131. "Ninox spilocephala". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2018-2.RLTS.T22728252A129607986.en.{{cite iucn}}: |date= / |doi= mismatch (help)
132. "Outs mirus". IUCN Red List of Threatened Species. 2023-07-12. 2023-07-12. doi:10.2305/IUCN.UK.2023-1.RLTS.T22688614A231090375.en.{{cite iucn}}: |date= / |doi= mismatch (help)
133. "Ninox mindorensis". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2017-1.RLTS.T22726334A110274000.en.{{cite iucn}}: |date= / |doi= mismatch (help)
134. "Otus mindorensis: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22688608A93202581". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22688608a93202581.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
135. "Otus moheliensis: BirdLife International: The IUCN Red List of Threatened Species 2017: e.T22724585A118472254". IUCN Red List of Threatened Species. 2017-10-01. 2017-10-01. doi:10.2305/iucn.uk.2017-3.rlts.t22724585a118472254.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
136. "Tyto novaehollandiae". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2018-2.RLTS.T62172196A132190206.en.{{cite iucn}}: |date= / |doi= mismatch (help)
137. "Otus magicus". IUCN Red List of Threatened Species. 2022-08-17. 2022-08-17. doi:10.2305/IUCN.UK.2022-2.RLTS.T219588044A219587839.en.{{cite iucn}}: |date= / |doi= mismatch (help)
138. "Ninox novaeseelandiae". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T62023843A95186187.en.{{cite iucn}}: |date= / |doi= mismatch (help)
139. "Ciccaba virgata: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689122A93219321". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689122a93219321.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
140. "Strix ocellata". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689066A93216851.en.{{cite iucn}}: |date= / |doi= mismatch (help)
141. "Glaucidium gnoma". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61791135A95180896.en.{{cite iucn}}: |date= / |doi= mismatch (help)
142. "Otus spilocephalus". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22688579A93201511.en.{{cite iucn}}: |date= / |doi= mismatch (help)
143. "Otus nigrorum". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2017-3.RLTS.T22725062A119425323.en.{{cite iucn}}: |date= / |doi= mismatch (help)
144. "Ninox odiosa: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22689480A132060613". IUCN Red List of Threatened Species. 2018-08-09. 2018-08-09. doi:10.2305/iucn.uk.2018-2.rlts.t22689480a132060613.en.{{cite iucn}}: |date= / |doi= mismatch (help)
145. "Ninox vareigata". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2018-2.RLTS.T22689475A130164063.en.{{cite iucn}}: |date= / |doi= mismatch (help)
146. "Otus alius". IUCN Red List of Threatened Species. 2019-08-20. 2019-08-20. doi:10.2305/IUCN.UK.2019-3.RLTS.T22728447A152511952.en.{{cite iucn}}: |date= / |doi= mismatch (help)
147. "Ninox japonica". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22725653A94898452.en.{{cite iucn}}: |date= / |doi= mismatch (help)
148. "Surnia ulula: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22689189A206518616". IUCN Red List of Threatened Species. 2021-08-13. 2021-08-13. doi:10.2305/iucn.uk.2021-3.rlts.t22689189a206518616.en.{{cite iucn}}: |date= / |doi= mismatch (help)
149. "Glaucidium californicum". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61791401A95181072.en.{{cite iucn}}: |date= / |doi= mismatch (help)
150. "Aegolius acadicus". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689366A93228694.en.{{cite iucn}}: |date= / |doi= mismatch (help)
151. "Ptilopsis leucotis". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T61781834A95179876.en.{{cite iucn}}: |date= / |doi= mismatch (help)
152. "Ninox ochracea: BirdLife International: The IUCN Red List of Threatened Species 2017: e.T22689439A119424363". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2017-3.rlts.t22689439a119424363.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
153. "Strix butleri". IUCN Red List of Threatened Species. 2021-02-18. 2021-02-18. doi:10.2305/IUCN.UK.2021-3.RLTS.T62290760A189658549.en.{{cite iucn}}: |date= / |doi= mismatch (help)
154. "Phodilus badius". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22727641A94955098.en.{{cite iucn}}: |date= / |doi= mismatch (help)
155. "Otus sunia". IUCN Red List of Threatened Species. 2021-08-13. 2021-08-13. doi:10.2305/IUCN.UK.2021-3.RLTS.T22728969A206482277.en.{{cite iucn}}: |date= / |doi= mismatch (help)
156. "Glaucidium peruanum". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/IUCN.UK.2016-3.RLTS.T22689253A93223829.en.{{cite iucn}}: |date= / |doi= mismatch (help)
157. "Megascops cooperi: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T155658784A167849084". IUCN Red List of Threatened Species. 2020-02-07. 2020-02-07. doi:10.2305/iucn.uk.2021-3.rlts.t155658784a167849084.en.{{cite iucn}}: |date= / |doi= mismatch (help)
158. "Otus fuliginosus: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T22688718A229775192". IUCN Red List of Threatened Species. 2023-07-24. 2023-07-24. doi:10.2305/IUCN.UK.2023-1.RLTS.T22688718A229775192.en.{{cite iucn}}: |date= / |doi= mismatch (help)
159. "Otus brucei: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22688631A206478716". IUCN Red List of Threatened Species. 2021-08-12. 2021-08-12. doi:10.2305/IUCN.UK.2021-3.RLTS.T22688631A206478716.en.{{cite iucn}}: |date= / |doi= mismatch (help)
160. "Otus pembaensis: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22688679A93205686". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22688679a93205686.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
161. "Glaucidium mooreorum: BirdLife International: The IUCN Red List of Threatened Species 2019: e.T22733081A156084939". 2019-08-06. doi:10.2305/iucn.uk.2019-3.rlts.t22733081a156084939.en.
162. "Bubo philippensis: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689002A93213848". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689002a93213848.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
163. "Ninox strenua: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689389A93229550". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689389a93229550.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
164. "Otus bikegila: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T230025085A231652448". IUCN Red List of Threatened Species. 2023-08-11. 2023-08-11. doi:10.2305/IUCN.UK.2023-1.RLTS.T230025085A231652448.en.{{cite iucn}}: |date= / |doi= mismatch (help)
165. "Tyto soumagnei: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22688493A93198777". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22688493a93198777.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
166. "Ninox rotiensis: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T22725127A233595800". IUCN Red List of Threatened Species. 2023-07-13. 2023-07-13. doi:10.2305/IUCN.UK.2023-1.RLTS.T22725127A233595800.en.{{cite iucn}}: |date= / |doi= mismatch (help)
167. "Megascops ingens: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T232594776A232861395". IUCN Red List of Threatened Species. 2023-04-19. 2023-04-19. doi:10.2305/IUCN.UK.2023-1.RLTS.T232594776A232861395.en.{{cite iucn}}: |date= / |doi= mismatch (help)
168. "Scotopelia ussheri: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22689038A180213988". IUCN Red List of Threatened Species. 2021-01-26. 2021-01-26. doi:10.2305/iucn.uk.2021-3.rlts.t22689038a180213988.en.{{cite iucn}}: |date= / |doi= mismatch (help)
169. "Otus hartlaubi: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22688620A131460770". IUCN Red List of Threatened Species. 2018-08-07. 2018-08-07. doi:10.2305/iucn.uk.2018-2.rlts.t22688620a131460770.en.{{cite iucn}}: |date= / |doi= mismatch (help)
170. "Otus thilohoffmanni: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22732040A95041044". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22732040a95041044.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
171. "Otus insularis: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22688667A177971497". IUCN Red List of Threatened Species. 2020-07-17. 2020-07-17. doi:10.2305/IUCN.UK.2021-3.RLTS.T22688667A177971497.en.{{cite iucn}}: |date= / |doi= mismatch (help)
172. "Bubo shelleyi: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22688980A131104915". IUCN Red List of Threatened Species. 2018-08-10. 2018-08-10. doi:10.2305/iucn.uk.2018-2.rlts.t22688980a131104915.en.{{cite iucn}}: |date= / |doi= mismatch (help)
173. "Asio flammeus: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22689531A202226582". IUCN Red List of Threatened Species. 2021-06-17. 2021-06-17. doi:10.2305/iucn.uk.2021-3.rlts.t22689531a202226582.en.{{cite iucn}}: |date= / |doi= mismatch (help)
174. "Otus siaoensis: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22728599A134199532". IUCN Red List of Threatened Species. 2018-08-18. 2018-08-18. doi:10.2305/iucn.uk.2018-2.rlts.t22728599a134199532.en.{{cite iucn}}: |date= / |doi= mismatch (help)
175. "Otus umbra: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T22688586A229906969". IUCN Red List of Threatened Species. 2023-03-13. 2023-03-13. doi:10.2305/IUCN.UK.2023-1.RLTS.T22688586A229906969.en.{{cite iucn}}: |date= / |doi= mismatch (help)
176. "Bubo scandiacus: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22689055A205475036". IUCN Red List of Threatened Species. 2021-07-23. 2021-07-23. doi:10.2305/iucn.uk.2021-3.rlts.t22689055a205475036.en.{{cite iucn}}: |date= / |doi= mismatch (help)
177. "Otus ireneae: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22688565A93201000". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22688565a93201000.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
178. "Pulsatrix perspicillata: BirdLife International: The IUCN Red List of Threatened Species 2018: e.T22689180A130161018". IUCN Red List of Threatened Species. 2018-08-07. 2018-08-07. doi:10.2305/iucn.uk.2018-2.rlts.t22689180a130161018.en.{{cite iucn}}: |date= / |doi= mismatch (help)
179. "Strix occidentalis: BirdLife International: The IUCN Red List of Threatened Species 2020: e.T22689089A180937862". IUCN Red List of Threatened Species. 2020-09-01. 2020-09-01. doi:10.2305/iucn.uk.2020-3.rlts.t22689089a180937862.en.{{cite iucn}}: |date= / |doi= mismatch (help)
180. "Asio clamator: BirdLife International: The IUCN Red List of Threatened Species 2021: e.T22689522A167863611". IUCN Red List of Threatened Species. 2020-02-07. 2020-02-07. doi:10.2305/iucn.uk.2021-3.rlts.t22689522a167863611.en.{{cite iucn}}: |date= / |doi= mismatch (help)
181. "Asio stygius: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689504A95214500". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689504a95214500.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
182. "Otus sulaensis: BirdLife International: The IUCN Red List of Threatened Species 2023: e.T62290539A230014017". IUCN Red List of Threatened Species. 2023-03-13. 2023-03-13. doi:10.2305/IUCN.UK.2023-1.RLTS.T62290539A230014017.en.{{cite iucn}}: |date= / |doi= mismatch (help)
183. "Ninox rudolfi: BirdLife International: The IUCN Red List of Threatened Species 2016: e.T22689398A93229974". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2016-3.rlts.t22689398a93229974.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
184. "Tyto nigrobrunnea: BirdLife International: The IUCN Red List of Threatened Species 2017: e.T22688449A110038609". IUCN Red List of Threatened Species. 2016-10-01. 2016-10-01. doi:10.2305/iucn.uk.2017-1.rlts.t22688449a110038609.en.{{cite iucn}}: old-form url, |date= / |doi= mismatch (help)
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