List of Strigiformes by population

This is a list of Strigiformes species by global population. While numbers are estimates, they have been made by the experts in their fields. For more information on how these estimates were ascertained, see Wikipedia's articles on population biology and population ecology.

Not all Gruiformes have had their populations quantified, but species without population estimates are included in a secondary table below.

The IOC World Bird List (version 15.1) recognizes 254 species of Strigiformes, five of which are extinct. ^[1] This list follows IUCN classifications for species names and taxonomy. Where IUCN classifications differ from other ornithological authorities, alternative names and taxonomies are noted.

Some members of Strigiformes are extinct:

• Bermuda saw-whet owl (Aegolius gradyi), described from fossil records and explorer accounts of the bird in the 17th century. ^[2]
• Laughing owl (Ninox albifacies), last seen in 1914, may have been extant through 1920s. ^[3]
• Mauritius scops owl or Mauritius owl (Otus sauzieri), last seen in 1837; extinct by 1859. IUCN/BirdLife International place species in genus Mascarenotus. ^[4]
• Réunion scops owl or Réunion owl (Otus grucheti), went extinct in the 17th century after the colonization of the island of Réunion. IUCN/BirdLife International place species in genus Mascarenotus. ^[5]
• Rodrigues scops owl or Rodrigues owl (Otus murivorus), last recorded in 1726. IUCN/BirdLife International place species in genus Mascarenotus. ^[6]

Species by global population

Common name	Binomial name	Population	Status	Trend	Notes	Image
Pernambuco pygmy owl	Glaucidium mooreorum	0-49 [7]	CR [7]	[7]	May be extinct. Last seen in 2001. [7]
Siau scops owl	Otus siaoensis	1-49 [8]	CR [8]	[8]
Seychelles scops owl	Otus insularis	200-280 [9]	CR [9]	[9]
Christmas Island boobook (Christmas boobook)	Ninox natalis	240-1,200 [10]	VU [10]	[10]	Best estimate for number of mature individuals is 340. [10]
Forest owlet	Athene blewitti	250-999 [11]	EN [11]	[11]
Romblon boobook	Ninox spilonotus	250-999 [12]	EN [12]	[12]
Cebu boobook	Ninox rumseyi	250-999 [13]	VU [13]	[13]
São Tomé scops owl	Otus hartlaubi	250-999 [14]	VU [14]	[14]	Total population is estimated to be 350-1,500 individuals. [14]
Long-whiskered owlet	Xenoglaux loweryi	250-999 [15]	VU [15]	[15]	Total population is estimated to be 350-1,500 individuals. [15]
Camiguin boobook	Ninox leventisi	250-1,400 [16]	VU [16]	[16]	Best estimate for number of mature individuals is 250-999. [16]
Moheli scops owl	Otus moheliensis	260 [17]	EN [17]	[17]
Serendib scops owl	Otus thilohoffmanni	400-1,000 [18]	EN [18]	[18]
Rote boobook	Ninox rotiensis	500-5,000 [19]	NT [19]	[19]
Principe scops owl	Otus bikegila	853-2,533 [20]	CR [20]	[20]	Best estimate for number of mature individuals is 1,149-1,597. [20]
Blakiston's eagle-owl (Blakiston's fish owl)	Ketupa blakistoni	900-1,700 [21]	VU [21]	[21]	Best estimate for number of mature individuals is 900-1,150. [21] IUCN/BirdLife International place this species in genus Bubo.
Sokoke scops owl	Otus ireneae	1,000-2,000 [22]	EN [22]	[22]
Madagascar red owl (Red owl)	Tyto soumagnei	1,250-3,750 [23]	VU [23]	[23]
Shelley's eagle-owl	Bubo shelleyi	1,500-7,000 [24]	VU [24]	[24]	Total population is estimated to be 2,500-9,999 individuals. [24]
Cloud-forest pygmy owl	Glaucidium nubicola	1,900-22,500 [25]	VU [25]	[25]	Best estimate for number of mature individuals is 2,500-9,999. [25]
Socotra scops owl	Otus socotranus	2,000 [26]	LC [26]	[26]	Total population is estimated to be 3,000 individuals. [26]
Togian boobook	Ninox burhani	2,100-8,100 [27]	NT [27]	[27]
Powerful owl	Ninox strenua	2,200-2,800 [28]	LC [28]	[28]	Total population is estimated to be 3,250-4,250 individuals. [28]
Grande Comore scops owl (Karthala scops owl)	Otus pauliani	2,300 [29]	EN [29]	[29]
Anjouan scops owl	Otus capnodes	2,300-3,600 [30]	EN [30]	[30]
Santa Marta screech owl	Megascops gilesi	2,300-7,500 [31]	VU [31]	[31]	Newly described species, as of 2017. [32] Population has not been directly quantified, but is extrapolated using the population density of the congeneric tawny-bellied screech owl. [31]
Pemba scops owl	Otus pembaensis	2,500-3,000 [33]	VU [33]	[33]
Sulu boobook	Ninox reyi	2,500-7,500 [34]	VU [34]	[34]
Malaita owl	Athene malaitae	2,500-9,999 [35]	VU [35]	[35]
Makira owl	Athene roseoaxillaris	2,500-9,999 [36]	VU [36]	[36]
Flores scops owl	Otus alfredi	2,500-9,999 [37]	VU [37]	[37]
Rufous fishing owl	Scotopelia ussheri	2,500-9,999 [38]	VU [38]	[38]
Golden masked owl	Tyto aurantia	2,500-9,999 [39]	VU [39]	[39]
Albertine owlet	Glaucidium albertinum	2,500-9,999 [40]	NT [40]	[40]	Total population is estimated to be 3,500-15,000 individuals. [40]
Fearful owl	Nesasio solomonensis	2,500-9,999 [41]	NT [41]	[41]
Nicobar scops owl	Otus alius	2,500-9,999 [42]	NT [42]	[42]
Javan scops owl	Otus angelinae	2,500-9,999 [43]	NT [43]	[43]
Rinjani scops owl	Otus jolandae	2,500-9,999 [44]	NT [44]	[44]
Visayan scops owl (Negros scops owl)	Otus nigrorum	2,500-9,999 [45]	NT [45]	[45]
Andaman boobook	Ninox affinis	2,500-9,999 [46]	LC [46]	[46]
Enggano scops owl	Otus enganensis	2,500-9,999 [47]	LC [47]	[47]
Mindoro boobook	Ninox mindorensis	2,500-25,000 [48]	VU [48]	[48]	Best estimate for number of mature individuals in 2,500-9,999. [48]
Lesser sooty owl	Tyto multipunctata	4,000 [49]	LC [49]	[49]	Estimated to be around 2,000 breeding pairs. [49] [50]
Arabian eagle-owl	Bubo milesi	4,000-9,999 [51]	LC [51]	[51]
Sumba boobook	Ninox rudolfi	5,000-24,000 [52]	NT [52]	[52]	Best estimate for number of mature individuals is 5,000-15,000. [52]
Least boobook	Ninox sumbaensis	10,000-19,999 [53]	EN [53]	[53]	Total population is estimated to be 15,000-30,000 individuals. [53]
New Britain boobook	Ninox odiosa	10,000-19,999 [54]	VU [54]	[54]
Guadalcanal owl	Athene granti	10,000-19,999 [55]	NT [55]	[55]
Palawan scops owl	Otus fuliginosus	10,000-19,999 [56]	LC [56]	[56]
Mentawai scops owl	Otus mentawi	10,000-19,999 [57]	LC [57]	[57]
Chestnut-backed owlet	Glaucidium castanonotum	10,000-20,000 [58]	NT [58]	[58]
Cyprus scops owl	Otus cyprius	10,000-24,000 [59]	LC [59]	? [59]	Total population is estimated to be 15,000-36,000 individuals. [59]
Banggai scops owl	Otus mendeni	10,000-40,000 [60]	NT [60]	[60]
Flammulated owl	Psiloscops flammeolus	12,000 [61]	LC [61]	? [61]
Tanimbar boobook	Ninox forbesi	12,000-48,000 [62]	LC [62]	[62]
Snowy owl	Bubo scandiacus	14,000-28,000 [63]	VU [63]	[63]
Spotted owl	Strix occidentalis	15,000 [64]	NT [64]	[64]
Biak scops owl	Otus beccarii	15,000-45,000 [65]	NT [65]	[65]	Best estimate for number of mature individuals is 15,000-20,000. [65]
Mindoro scops owl	Otus mindorensis	15,750-44,000 [66]	NT [66]	[66]
Tamaulipas pygmy owl	Glaucidium sanchezi	20,000-49,999 [67]	NT [67]	[67]
Colima pygmy owl	Glaucidium palmarum	20,000-49,999 [68]	LC [68]	[68]
Bearded screech owl	Megascops barbarus	20,000-49,999 [69]	LC [69]	[69]
Bare-shanked screech owl	Megascops clarkii	20,000-49,999 [70]	LC [70]	[70]
Balsas screech owl	Megascops seductus	20,000-49,999 [71]	LC [71]	[71]
Unspotted saw-whet owl	Aegolius ridgwayi	20,000-50,000 [72]	LC [72]	[72]
Costa Rican pygmy owl	Glaucidium costaricanum	20,000-50,000 [73]	LC [73]	[73]
Fulvous owl	Strix fulvescens	20,000-50,000 [74]	LC [74]	[74]
Great grey owl	Strix nebulosa	50,000-99,999 [75]	LC [75]	[75]
Stygian owl	Asio stygius	50,000-499,999 [76]	LC [76]	[76]
Pacific screech owl	Megascops cooperi	50,000-499,999 [77]	LC [77]	[77]
Central American pygmy owl	Glaucidium griseiceps	50,000-500,000 [78]	LC [78]	[78]
Guatemalan screech owl (Middle American screech owl)	Megascops guatemalae	50,000-500,000 [79]	LC [79]	[79]	Note that IOC taxonomy splits two additional species from this one: Chocó screech owl (M. centralis) and foothill screech owl (M. roraimae). [1] IUCN/BirdLife International maintain all three species within M. guatemalae. [80]
Arabian scops owl	Otus pamelae	60,000 [81]	LC [81]	[81]
Elf owl	Micrathene whitneyi	72,000 [82]	LC [82]	[82]
Western screech owl	Megascops kennicottii	73,000-230,000 [83]	LC [83]	[83]
Northern hawk-owl	Surnia ulula	100,000-499,999 [84]	LC [84]	[84]
Northern pygmy-owl (Mountain pygmy-owl)	Glaucidium gnoma	180,000 [85]	LC [85]	[85]	Note that IOC taxonomy splits three additional species from this one: the northern (G. californicum), Guatemalan (G. cobanense), and Baja (G. hoskinsii) pygmy-owls. [1] IUCN/BirdLife International maintain all four species within G. gnoma. [80]
Eurasian eagle-owl	Bubo bubo	180,000-300,000 [86]	LC [86]	[86]
Whiskered screech owl	Megascops trichopsis	200,000 [87]	LC [87]	[87]
Eurasian pygmy owl	Glaucidium passerinum	471,000-894,000 [88]	LC [88]	[88]
Striped owl	Asio clamator	500,000-4,999,999 [89]	LC [89]	[89]
Tropical screech owl	Megascops choliba	500,000-4,999,999 [90]	LC [90]	[90]
Mottled owl	Strix virgata	500,000-4,999,999 [91]	LC [91]	[91]	IUCN/BirdLife International place this species in genus Ciccaba.
Eastern screech owl	Megascops asio	560,000 [92]	LC [92]	[92]
Ural owl	Strix uralensis	640,000-1,052,000 [93]	LC [93]	[93]
Boreal owl	Aegolius funereus	730,000-1,810,000 [94]	LC [94]	[94]
Eurasian scops owl	Otus scops	790,000-1,350,000 [95]	LC [95]	[95]
Burrowing owl	Athene cunicularia	1,000,000-9,999,999 [96]	LC [96]	[96]
Short-eared owl	Asio flammeus	1,200,000-2,100,000 [97]	LC [97]	[97]
Tawny owl	Strix aluco	1,580,000-2,340,000 [98]	LC [98]	[98]	Note that IOC taxonomy splits an additional species, the Maghreb owl (S. mauritanica) from this one. [1] IUCN/BirdLife International maintain both species within S. aluco. [80]
Common barn owl (Western barn owl)	Tyto alba	1,960,000-3,240,000 [99]	LC [99]	? [99]	Note that IOC taxonomy splits three additional species from this one: American barn owl (T. furcata), Eastern barn owl (T. javanica), and Andaman masked owl (T. deroepstorffi). [1] IUCN/BirdLife International maintain all four species within T. alba. [80]
Northern saw-whet owl	Aegolius acadicus	2,000,000 [100]	LC [100]	[100]
Long-eared owl	Asio otus	2,200,000-3,700,000 [101]	LC [101]	[101]
Barred owl	Strix varia	3,000,000-3,900,000 [102]	LC [102]	[102]	Note that IOC taxonomy splits an additional species, thecinereous owl (S. sartorii) from this one. [1] IUCN/BirdLife International maintain both species within S. varia. [80]
Little owl	Athene noctua	5,000,000-9,999,999 [103]	LC [103]	[103]
Great horned owl	Bubo virginianus	5,700,000 [104]	LC [105]	[105]	IUCN/BirdLife International do not report a population estimate. [105] Value given comes from Partners in Flight database. [104]
Ferruginous pygmy owl	Glaucidium brasilianum	20,000,000 [106]	LC [106]	[106]

Species without population estimates

Common name	Binomial name	Population	Status	Trend	Notes	Image
Itombwe owl	Tyto prigoginei	? [107]	DD [107]	? [107]	Known from two records, in 1951 and 1996. [107]
Philippine eagle-owl	Ketupa philippensis	? [108]	VU [108]	[108]	IUCN/BirdLife International place species in genus Bubo.
White-fronted scops owl	Otus sagittatus	? [109]	VU [109]	[109]
Barred eagle-owl	Ketupa sumatrana	? [110]	NT [110]	[110]	IUCN/BirdLife International place species in genus Bubo.
Ochre-bellied boobook	Ninox ochracea	? [111]	NT [111]	[111]
Chocolate boobook	Ninox randi	? [112]	NT [112]	[112]
Mindanao boobook	Ninox spilocephala	? [113]	NT [113]	[113]
Ryūkyū scops owl	Otus elegans	? [114]	NT [114]	[114]
Giant scops owl	Otus gurneyi	? [115]	NT [115]	[115]
Reddish scops owl	Otus rufescens	? [116]	NT [116]	[116]
Sula scops owl	Otus sulaensis	? [117]	NT [117]	[117]
Chaco owl	Strix chacoensis	? [118]	NT [118]	[118]
Taliabu masked owl	Tyto nigrobrunnea	? [119]	NT [119]	[119]
Buff-fronted owl	Aegolius harrisii	? [120]	LC [120]	[120]
Abyssinian owl	Asio abyssinicus	? [121]	LC [121]	[121]
Marsh owl	Asio capensis	? [122]	LC [122]	[122]
Madagascar owl	Asio madagascariensis	? [123]	LC [123]	[123]
Spotted owlet	Athene brama	? [124]	LC [124]	[124]
West Solomons owl	Athene jacquinoti	? [125]	LC [125]	[125]
White-browed owl	Athene superciliaris	? [126]	LC [126]	[126]
Spotted eagle-owl	Bubo africanus	? [127]	LC [127]	[127]
Pharaoh eagle-owl	Bubo ascalaphus	? [128]	LC [128]	[128]
Rock eagle-owl (Indian eagle-owl)	Bubo bengalensis	? [129]	LC [129]	[129]
Cape eagle-owl	Bubo capensis	? [130]	LC [130]	[130]
Greyish eagle-owl	Bubo cinerascens	? [131]	LC [131]	[131]
Lesser horned owl	Bubo magellanicus	? [132]	LC [132]	[132]
Yungas pygmy owl	Glaucidium bolivianum	? [133]	LC [133]	[133]
Collared owlet	Glaucidium brodiei	? [134]	LC [134]	[134]
African barred owlet	Glaucidium capense	? [135]	LC [135]	[135]
Javan owlet	Glacidium castanopterum	? [136]	LC [136]	[136]
Asian barred owlet	Glaucidium cucoloides	? [137]	LC [137]	[137]
Amazonian pygmy-owl	Glaucidium hardyi	? [138]	LC [138]	[138]
Andean pygmy owl	Glaucidium jardinii	? [139]	LC [139]	[139]
Least pygmy owl (East Brazilian pygmy owl)	Glaucidium minutissimum	? [140]	LC [140]	[140]
Austral pygmy owl	Glaucidium nana	? [141]	LC [141]	[141]
Subtropical pygmy owl	Glaucidium parkeri	? [142]	LC [142]	[142]
Pearl-spotted owlet	Glaucidium perlatum	? [143]	LC [143]	[143]
Peruvian pygmy owl (Pacific pygmy owl)	Glaucidium peruanum	? [144]	LC [144]	[144]
Jungle owlet	Glaucidium radiatum	? [145]	LC [145]	[145]
Cuban pygmy owl	Glaudicium siju	? [146]	LC [146]	[146]
Sjöstedt's owlet (Sjöstedt's barred owlet)	Glaucidium sjostedti	? [147]	LC [147]	[147]
Red-chested owlet	Glaucidium tephronotum	? [148]	LC [148]	[148]
Puerto Rican owl	Gymnasio nudipes	? [149]	LC [149]	[149]
Maned owl	Jubula lettii	? [150]	LC [150]	[150]
Dusky eagle-owl	Ketupa coromanda	? [151]	LC [151]	[151]	IUCN/BirdLife International place species in genus Bubo.
Tawny fish owl	Ketupa flavipes	? [152]	LC [152]	[152]
Buffy fish owl	Ketupa ketupu	? [153]	LC [153]	[153]
Verreaux's eagle-owl	Ketupa lactea	? [154]	LC [154]	[154]	IUCN/BirdLife International place species in genus Bubo.
Akun eagle-owl	Ketupa leucosticta	? [155]	LC [155]	[155]	IUCN/BirdLife International place species in genus Bubo.
Spot-bellied eagle-owl	Ketupa nipalensis	? [156]	LC [156]	[156]	IUCN/BirdLife International place species in genus Bubo.
Fraser's eagle-owl	Ketupa poensis	? [157]	LC [157]	[157]	IUCN/BirdLife International place species in genus Bubo.
Brown fish owl	Ketupa zeylonensis	? [158]	LC [158]	[158]
Crested owl	Lophostrix cristata	? [159]	LC [159]	[159]
Bare-legged owl	Margarobyas lawrencii	? [160]	LC [160]	[160]
White-throated screech owl	Megascops albogularis	? [161]	LC [161]	[161]
Black-capped screech owl	Megascops atricapilla	? [162]	LC [162]	[162]
Yungas screech owl	Megascops hoyi	? [163]	LC [163]	[163]
Rufescent screech owl	Megascops ingens	? [164]	LC [164]	[164]	Some taxonomists split an additional species, the Colombian screech-owl (M. colombianus) from this species. [165] However, neither IOC or IUCN/BirdLife International treat it as a subspecies of M. ingens. [1] [80]
Koepcke's screech owl	Megascops koepckeae	? [166]	LC [166]	[166]
Cloud-forest screech owl	Megascops marshalli	? [167]	LC [167]	[167]
Cinnamon screech owl	Megascops petersoni	? [168]	LC [168]	[168]
Peruvian screech owl (West Peruvian screech owl)	Megascops roboratus	? [169]	LC [169]	[169]
Long-tufted screech owl	Megascops sanctaecatarinae	? [170]	LC [170]	[170]
Tawny-bellied screech owl	Megascops watsonii	? [171]	LC [171]	[171]
Southern boobook (Australian boobook)	Ninox boobook	? [172]	LC [172]	[172]
Barking owl	Ninox connivens	? [173]	LC [173]	[173]
Timor boobook	Ninox fusca	? [174]	LC [174]	[174]
Buru boobook	Ninox hantu	? [175]	LC [175]	[175]
Halmahera boobook	Ninox hypogramma	? [176]	LC [176]	[176]
Cinnabar boobook	Ninox ios	? [177]	LC [177]	[177]
Northern boobook	Ninox japonica	? [178]	LC [178]	[178]
Tasmanian boobok	Ninox leucopsis	? [179]	LC [179]	[179]
Manus boobook	Ninox meeki	? [180]	LC [180]	[180]
Morepork	Ninox novaeseelandiae	? [181]	LC [181]	[181]
Hume's boobook	Ninox obscura	? [182]	LC [182]	[182]
Luzon boobook	Ninox philippensis	? [183]	LC [183]	[183]
Alor boobook	Ninox plesseni	? [184]	LC [184]	[184]
Speckled boobook	Ninox punctulata	? [185]	LC [185]	[185]
Rufous owl	Ninox rufa	? [186]	LC [186]	[186]
Brown boobook	Ninox scutulata	? [187]	LC [187]	[187]
Seram boobook	Ninox squamipila	? [188]	LC [188]	[188]
Jungle boobook (Papuan boobook)	Ninox theomacha	? [189]	LC [189]	[189]
Bismarck boobook (New Ireland boobook)	Ninox variegata	? [190]	LC [190]	[190]
Indian scops owl	Otus bakkamoena	? [191]	LC [191]	[191]
Andaman scops owl	Otus balli	? [192]	LC [192]	[192]
Rajah scops owl	Otus brookii	? [193]	LC [193]	[193]
Pallid scops owl	Otus brucei	? [194]	LC [194]	[194]
Sangihe scops owl	Otus collari	? [195]	LC [195]	[195]
Mindanao Lowlands scops owl (Everett's scops owl)	Otus everetti	? [196]	LC [196]	[196]
Sandy scops owl	Otus icterorhynchus	? [197]	LC [197]	[197]
Sunda scops owl	Otus lempiji	? [198]	LC [198]	[198]
Collared scops owl	Otus lettia	? [199]	LC [199]	[199]
Luzon highland scops owl (Luzon scops owl)	Otus longicornis	? [200]	LC [200]	[200]
Moluccan scops owl	Otus magicus	? [201]	LC [201]	[201]
Sulawesi scops owl	Otus manadensis	? [202]	LC [202]	[202]
Mantanani scops owl	Otus mantananensis	? [203]	LC [203]	[203]
Mayotte scops owl	Otus mayottensis	? [204]	LC [204]	[204]
Luzon Lowland scops owl (Philippine scops owl)	Otus megalotis	? [205]	LC [205]	[205]
Mindanao Highlands scops owl (Mindanao scops owl)	Otus mirus	? [206]	LC [206]	[206]
Palau owl (Palau scops owl)	Otus podargina	? [207]	LC [207]	[207]	IUCN/BirdLife International place this species in genus Pyrroglaux.
Madagascar scops owl (Rainforest scops owl)	Otus rutilus	? [208]	LC [208]	[208]	Note that IOC taxonomy splits an additional species, the Torotoroka scops owl (O. madagascariensis), from this species. [1] IUCN/BirdLife International maintain both species within O. rutilis. [80]
Japanese scops owl	Otus semitorques	? [209]	LC [209]	[209]
African scops owl	Otus senegalensis	? [210]	LC [210]	[210]	Note that IOC taxonomy splits an additional species, the Annobón scops owl (O. feae), from this species. [1] IUCN/BirdLife International maintain both species within O. senegalensis. [80]
Wallace's scops owl	Otus silvicola	? [211]	LC [211]	[211]
Mountain scops owl	Otus spilocephalus	? [212]	LC [212]	[212]
Oriental scops owl	Otus sunia	? [213]	LC [213]	[213]
Wetar scops owl	Otus tempestatis	? [214]	LC [214]	[214]
Simeulue scops owl	Otus umbra	? [215]	LC [215]	[215]
Sri Lanka bay owl	Phodilus assimilis	? [216]	LC [216]	[216]
Oriental bay owl	Phodilus badius	? [217]	LC [217]	[217]
Jamaican owl	Pseudoscops grammicus	? [218]	LC [218]	[218]
Southern white-faced owl	Ptilopsis granti	? [219]	LC [219]	[219]
Northern white-faced owl	Ptilopsis leucotis	? [220]	LC [220]	[220]
Tawny-browed owl	Pulsatrix koeniswaldiana	? [221]	LC [221]	[221]
Band-bellied owl	Pulsatrix melanota	? [222]	LC [222]	[222]
Spectacled owl	Pulsatrix perspicillata	? [223]	LC [223]	[223]
Vermiculated fishing owl	Scotopelia bouvieri	? [224]	LC [224]	[224]
Pel's fishing owl	Scotopelia peli	? [225]	LC [225]	[225]
Rufous-banded owl	Strix albitarsis	? [226]	LC [226]	[226]	IUCN/BirdLife International place species in genus Ciccaba.
Omani owl	Strix butleri	? [227]	LC [227]	[227]
Desert tawny owl (Desert owl)	Strix hadorami	? [228]	LC [228]	[228]
Black-banded owl	Strix huhula	? [229]	LC [229]	[229]	IUCN/BirdLife International place species in genus Ciccaba.
Rusty-barred owl	Strix hylophila	? [230]	LC [230]	[230]
Brown wood owl	Strix leptogrammica	? [231]	LC [231]	[231]
Mottled wood owl	Strix ocellata	? [232]	LC [232]	[232]
Black-and-white owl	Strix nigrolineata	? [233]	LC [233]	[233]	IUCN/BirdLife International place species in genus Ciccaba.
Himalayan owl	Strix nivicolum	? [234]	LC [234]	[234]
Rufous-legged owl	Strix rufipes	? [235]	LC [235]	[235]
Spotted wood owl	Strix seloputo	? [236]	LC [236]	[236]
African wood owl	Strix woodfordii	? [237]	LC [237]	[237]
Sunda owlet	Taenioptynx sylvaticus	? [238]	LC [238]	[238]	IUCN/BirdLife International places this species in genus Glaucidium.
African grass owl	Tyto capensis	? [239]	LC [239]	[239]
Ashy-faced owl	Tyto glaucops	? [240]	LC [240]	[240]
Minahasa masked owl	Tyto inexspectata	? [241]	LC [241]	[241]
Eastern grass owl	Tyto longimembris	? [242]	LC [242]	[242]
Australasian masked owl (Australian masked owl)	Tyto novaehollandiae	? [243]	LC [243]	[243]	Note that IOC taxonomy splits two additional species, the Manus masked owl (T. manusi) and Moluccan masked owl (T. sororcula), from this species. [1] IUCN/BirdLife International maintain all three species within T. novaehollandiae. [80]
Sulawesi masked owl	Tyto rosenbergii	? [244]	LC [244]	[244]
Greater sooty owl	Tyto tenebricosa	? [245]	LC [245]	[245]
Papuan hawk-owl	Uroglaux dimorpha	? [246]	LC [246]	[246]

See also

• Biology portal
• Birds portal

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

References

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61. BirdLife International (2025). "Psiloscops flammeolus". IUCN Red List of Threatened Species . 2025 e.T22688637A168810666. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688637A168810666.en .
62. BirdLife International (2023). "Ninox forbesi". IUCN Red List of Threatened Species . 2023 e.T22727916A218489749. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22727916A218489749.en .
63. BirdLife International (2021). "Bubo scandiacus". IUCN Red List of Threatened Species . 2021 e.T22689055A205475036. doi: 10.2305/iucn.uk.2021-3.rlts.t22689055a205475036.en .
64. BirdLife International (2020). "Strix occidentalis". IUCN Red List of Threatened Species . 2020 e.T22689089A180937862. doi: 10.2305/iucn.uk.2020-3.rlts.t22689089a180937862.en .
65. BirdLife International (2023). "Otus beccarii". IUCN Red List of Threatened Species . 2023 e.T22724754A223084666. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22724754A223084666.en .
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67. BirdLife International (2019). "Glaucidium sanchezi". IUCN Red List of Threatened Species . 2019 e.T22724465A156097322. doi: 10.2305/iucn.uk.2019-3.rlts.t22724465a156097322.en .
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83. BirdLife International (2024). "Megascops kennicottii". IUCN Red List of Threatened Species . 2024 e.T22688747A264596247. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688747A264596247.en .
84. BirdLife International (2021). "Surnia ulula". IUCN Red List of Threatened Species . 2021 e.T22689189A206518616. doi: 10.2305/iucn.uk.2021-3.rlts.t22689189a206518616.en .
85. BirdLife International (2023). "Glaucidium gnoma". IUCN Red List of Threatened Species . 2023 e.T22735293A232131334. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22735293A232131334.en .
86. BirdLife International (2025). "Bubo bubo". IUCN Red List of Threatened Species . 2025 e.T22688927A280978716. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688927A280978716.en .
87. BirdLife International (2025). "Megascops trichopsis". IUCN Red List of Threatened Species . 2025 e.T22688766A152353005. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688766A152353005.en .
88. BirdLife International (2024). "Glaucidium passerinum". IUCN Red List of Threatened Species . 2024 e.T22689194A264567511. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689194A264567511.en .
89. BirdLife International (2021). "Asio clamator". IUCN Red List of Threatened Species . 2021 e.T22689522A167863611. doi: 10.2305/iucn.uk.2021-3.rlts.t22689522a167863611.en .
90. BirdLife International (2021). "Megascops choliba". IUCN Red List of Threatened Species . 2021 e.T22688774A167849732. doi: 10.2305/IUCN.UK.2021-3.RLTS.T22688774A167849732.en .
91. BirdLife International (2022). "Ciccaba virgata". IUCN Red List of Threatened Species . 2022 e.T22689122A167859687.
92. BirdLife International (2019). "Megascops asio". IUCN Red List of Threatened Species . 2019 e.T155660662A152331179. doi: 10.2305/IUCN.UK.2019-3.RLTS.T155660662A152331179.en .
93. BirdLife International (2021). "Aegolius ridgwayi". IUCN Red List of Threatened Species . 2021 e.T22689108A199908915. doi: 10.2305/IUCN.UK.2021-3.RLTS.T22689108A199908915.en .
94. BirdLife International (2021). "Aegolius funereus". IUCN Red List of Threatened Species . 2021 e.T22689362A201898946. doi: 10.2305/iucn.uk.2021-3.rlts.t22689362a201898946.en .
95. BirdLife International (2021). "Otus scops". IUCN Red List of Threatened Species . 2021 e.T155019854A206523296. doi: 10.2305/iucn.uk.2021-3.rlts.t155019854a206523296.en .
96. BirdLife International (2025). "Athene cunicularia". IUCN Red List of Threatened Species . 2025 e.T22689353A281015958. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689353A281015958.en .
97. BirdLife International (2021). "Asio flammeus". IUCN Red List of Threatened Species . 2021 e.T22689531A202226582. doi: 10.2305/iucn.uk.2021-3.rlts.t22689531a202226582.en .
98. BirdLife International (2024). "Strix aluco". IUCN Red List of Threatened Species . 2024 e.T22725469A264546097. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22725469A264546097.en .
99. BirdLife International (2025). "Tyto alba". IUCN Red List of Threatened Species . 2025 e.T22688504A280909370. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688504A280909370.en .
100. BirdLife International (2024). "Aegolius acadicus". IUCN Red List of Threatened Species . 2024 e.T22689366A264595999. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689366A264595999.en .
101. BirdLife International (2021). "Asio otus". IUCN Red List of Threatened Species . 2021 e.T22689507A201150685. doi: 10.2305/iucn.uk.2021-3.rlts.t22689507a201150685.en .
102. BirdLife International (2024). "Strix varia". IUCN Red List of Threatened Species . 2024 e.T22689094A264599155. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689094A264599155.en .
103. BirdLife International. (2019) [amended version of 2018 assessment]. "Athene noctua". IUCN Red List of Threatened Species . 2019 e.T22689328A155470112. doi: 10.2305/IUCN.UK.2019-3.RLTS.T22689328A155470112.en .
104. Partners in Flight (2026). "Avian Conservation Assessment and Population Estimates Databases". Bird Conservancy of the Rockies.
105. BirdLife International. (2018). "Bubo virginianus". IUCN Red List of Threatened Species . 2018 e.T61752071A132039486. doi: 10.2305/IUCN.UK.2018-2.RLTS.T61752071A132039486.en .
106. BirdLife International (2022). "Glaucidium brasilianum". IUCN Red List of Threatened Species . 2022 e.T22689248A217038370. doi: 10.2305/IUCN.UK.2022-2.RLTS.T22689248A217038370.en .
107. BirdLife International (2025). "Tyto prigoginei". IUCN Red List of Threatened Species . 2025 e.T22688529A268193776. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688529A268193776.en .
108. BirdLife International (2025). "Bubo philippensis". IUCN Red List of Threatened Species . 2025 e.T22689002A266786202. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689002A266786202.en .
109. BirdLife International (2025). "Otus sagittatus". IUCN Red List of Threatened Species . 2025 e.T22688548A203546243. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688548A203546243.en .
110. BirdLife International (2022). "Bubo sumatranus". IUCN Red List of Threatened Species . 2022 e.T22688976A207944973. doi: 10.2305/IUCN.UK.2022-1.RLTS.T22688976A207944973.en .
111. BirdLife International (2025). "Ninox ochracea". IUCN Red List of Threatened Species . 2025 e.T22689439A255366232. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689439A255366232.en .
112. BirdLife International (2025). "Ninox randi". IUCN Red List of Threatened Species . 2025 e.T22726321A267402020. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22726321A267402020.en .
113. BirdLife International. (2023). "Ninox spilocephala". IUCN Red List of Threatened Species . 2023 e.T22728252A231065626. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22728252A231065626.en .
114. BirdLife International (2017). "Otus elegans". IUCN Red List of Threatened Species . 2017 e.T22688651A117001277. doi: 10.2305/IUCN.UK.2017-3.RLTS.T22688651A117001277.en .
115. BirdLife International (2025). "Otus gurneyi". IUCN Red List of Threatened Species . 2025 e.T22688911A266733370. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688911A266733370.en .
116. BirdLife International (2024). "Otus rufescens". IUCN Red List of Threatened Species . 2024 e.T22688554A261490598. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688554A261490598.en .
117. BirdLife International (2023). "Otus sulaensis". IUCN Red List of Threatened Species . 2023 e.T62290539A230014017. doi: 10.2305/IUCN.UK.2023-1.RLTS.T62290539A230014017.en .
118. BirdLife International. (2020) [amended version of 2018 assessment]. "Strix chacoensis". IUCN Red List of Threatened Species . 2020 e.T22733306A177165960. doi: 10.2305/IUCN.UK.2020-3.RLTS.T22733306A177165960.en .
119. BirdLife International (2024). "Tyto nigrobrunnea". IUCN Red List of Threatened Species . 2024 e.T22688449A255584128. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688449A255584128.en .
120. BirdLife International (2024). "Aegolius harrasii". IUCN Red List of Threatened Species . 2024 e.T22689378A264158755. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689378A264158755.en .
121. BirdLife International (2024). "Asio abyssinicus". IUCN Red List of Threatened Species . 2024 e.T22689512A263681488. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689512A263681488.en .
122. BirdLife International (2021). "Asio capensis". IUCN Red List of Threatened Species . 2021 e.T22689535A202174205. doi: 10.2305/IUCN.UK.2021-3.RLTS.T22689535A202174205.en .
123. BirdLife International (2018). "Asio madagascariensis". IUCN Red List of Threatened Species . 2018 e.T22689517A130164463. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689517A130164463.en .
124. BirdLife International (2024). "Athene brama". IUCN Red List of Threatened Species . 2024 e.T22689332A263695848. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689332A263695848.en .
125. BirdLife International (2024). "Athene jacquinoti". IUCN Red List of Threatened Species . 2024 e.T45449325A264078035. doi: 10.2305/IUCN.UK.2024-2.RLTS.T45449325A264078035.en .
126. BirdLife International (2025). "Athene superciliaris". IUCN Red List of Threatened Species . 2025 e.T22689425A276888758. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689425A276888758.en .
127. BirdLife International (2022). "Bubo africanus". IUCN Red List of Threatened Species . 2022 e.T216709698A216710132. doi: 10.2305/IUCN.UK.2022-2.RLTS.T216709698A216710132.en .
128. BirdLife International (2024). "Bubo ascalaphus". IUCN Red List of Threatened Species . 2024 e.T22688938A263650483. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688938A263650483.en .
129. BirdLife International (2024). "Bubo bengalensis". IUCN Red List of Threatened Species . 2024 e.T22688934A264039943. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688934A264039943.en .
130. BirdLife International (2024). "Bubo capensis". IUCN Red List of Threatened Species . 2024 e.T22688944A263651172. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688944A263651172.en .
131. BirdLife International (2024). "Bubo cinerascens". IUCN Red List of Threatened Species . 2024 e.T61741660A263665678. doi: 10.2305/IUCN.UK.2024-2.RLTS.T61741660A263665678.en .
132. BirdLife International (2024). "Bubo magellanicus". IUCN Red List of Threatened Species . 2024 e.T61752097A264001187. doi: 10.2305/IUCN.UK.2024-2.RLTS.T61752097A264001187.en .
133. BirdLife International (2024). "Glaucidium bolivianum". IUCN Red List of Threatened Species . 2024 e.T22689229A263988366. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689229A263988366.en .
134. "Glaucidium brodiei". IUCN Red List of Threatened Species . 2021. 2021. doi: 10.2305/IUCN.UK.2021-3.RLTS.T200290653A206387811.en .
135. BirdLife International (2024). "Glaucidium capense". IUCN Red List of Threatened Species . 2024 e.T22689290A263715187. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689290A263715187.en .
136. BirdLife International (2025). "Glaucidium castanopterum". IUCN Red List of Threatened Species . 2025 e.T22689280A280953944. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689280A280953944.en .
137. BirdLife International (2024). "Glaucidium cuculoides". IUCN Red List of Threatened Species . 2024 e.T22689277A264129523. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689277A264129523.en .
138. BirdLife International (2018). "Glaucidium hardyi". IUCN Red List of Threatened Species . 2018 e.T22689234A130162570. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689234A130162570.en .
139. BirdLife International (2024). "Glaucidium jardinii". IUCN Red List of Threatened Species . 2024 e.T22689222A263989831. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689222A263989831.en .
140. "Glaucidium minutissimum". IUCN Red List of Threatened Species . 2018. 2018. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689240A130162980.en .
141. BirdLife International (2024). "Glaucidium nana". IUCN Red List of Threatened Species . 2024 e.T22689258A263709733. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689258A263709733.en .
142. BirdLife International (2024). "Glaucidium parkeri". IUCN Red List of Threatened Species . 2024 e.T22729162A263987758. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22729162A263987758.en .
143. BirdLife International (2024). "Glaucidium perlatum". IUCN Red List of Threatened Species . 2024 e.T22689203A263980104. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689203A263980104.en .
144. BirdLife International (2024). "Glaucidium peruanum". IUCN Red List of Threatened Species . 2024 e.T22689253A264134952. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689253A264134952.en .
145. BirdLife International (2024). "Glaucidium radiatum". IUCN Red List of Threatened Species . 2024 e.T22689283A264137817. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689283A264137817.en .
146. BirdLife International (2024). "Glaucidium siju". IUCN Red List of Threatened Species . 2024 e.T22689262A264131835. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689262A264131835.en .
147. BirdLife International (2024). "Glaucidium sjostedti". IUCN Red List of Threatened Species . 2024 e.T22689271A264130461. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689271A264130461.en .
148. BirdLife International (2024). "Glaucidium tephronotum". IUCN Red List of Threatened Species . 2024 e.T22689267A264129971. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689267A264129971.en .
149. BirdLife International (2025). "Gymnasio nudipes". IUCN Red List of Threatened Species . 2025 e.T22688891A182247782. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688891A182247782.en .
150. BirdLife International (2025). "Jubula lettii". IUCN Red List of Threatened Species . 2025 e.T22689173A259543993. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689173A259543993.en .
151. BirdLife International (2025). "Bubo coromandus". IUCN Red List of Threatened Species . 2025 e.T22688992A280969765. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688992A280969765.en .
152. BirdLife International (2018). "Ketupa flavipes". IUCN Red List of Threatened Species . 2018 e.T22689017A130157883. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689017A130157883.en .
153. BirdLife International (2024). "Ketupa ketupu". IUCN Red List of Threatened Species . 2024 e.T22689024A263602946. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689024A263602946.en .
154. BirdLife International (2024). "Bubo lacteus". IUCN Red List of Threatened Species . 2024 e.T22688986A264041652. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688986A264041652.en .
155. BirdLife International (2018). "Bubo leucostictus". IUCN Red List of Threatened Species . 2018 e.T22688996A130156693. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22688996A130156693.en .
156. BirdLife International (2018). "Bubo nipalensis". IUCN Red List of Threatened Species . 2018 e.T22688970A130156069. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22688970A130156069.en .
157. BirdLife International (2024). "Bubo poensis". IUCN Red List of Threatened Species . 2024 e.T22730030A263958348. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22730030A263958348.en .
158. BirdLife International (2025). "Ketupa zeylonensis". IUCN Red List of Threatened Species . 2025 e.T22689012A280908856. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689012A280908856.en .
159. BirdLife International (2018). "Lophostrix cristata". IUCN Red List of Threatened Species . 2018 e.T22689177A130160501. doi: 10.2305/iucn.uk.2018-2.rlts.t22689177a130160501.en .
160. BirdLife International (2024). "Margarobyas lawrencii". IUCN Red List of Threatened Species . 2024 e.T22688883A264050848. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688883A264050848.en .
161. BirdLife International (2024). "Megascops albogularis". IUCN Red List of Threatened Species . 2024 e.T22688903A264063374. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688903A264063374.en .
162. BirdLife International (2024). "Megascops atricapilla". IUCN Red List of Threatened Species . 2024 e.T22731897A264050139. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22731897A264050139.en .
163. BirdLife International (2024). "Megascops hoyi". IUCN Red List of Threatened Species . 2024 e.T22733712A264110810. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22733712A264110810.en .
164. BirdLife International (2023). "Megascops ingens". IUCN Red List of Threatened Species . 2023 e.T232594776A232861395. doi: 10.2305/IUCN.UK.2023-1.RLTS.T232594776A232861395.en .
165. "Treat Megascops colombianus as a subspecies of M. ingens". www.museum.lsu.edu. Retrieved 2026-01-10.
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167. BirdLife International (2025). "Megascops marshalli". IUCN Red List of Threatened Species . 2025 e.T22688847A277487152. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688847A277487152.en .
168. BirdLife International (2025). "Megascops pertersoni". IUCN Red List of Threatened Species . 2025 e.T22688840A281019849. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688840A281019849.en .
169. BirdLife International (2025). "Megascops roboratus". IUCN Red List of Threatened Species . 2025 e.T22688790A281025176. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688790A281025176.en .
170. BirdLife International (2024). "Megascops sanctaecatarinae". IUCN Red List of Threatened Species . 2024 e.T22688874A263664762. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688874A263664762.en .
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173. BirdLife International (2025). "Ninox connivens". IUCN Red List of Threatened Species . 2025 e.T22689394A281033875. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689394A281033875.en .
174. BirdLife International (2023). "Ninox fusca". IUCN Red List of Threatened Species . 2023 e.T230084345A233564880. doi: 10.2305/IUCN.UK.2023-1.RLTS.T230084345A233564880.en .
175. BirdLife International (2025). "Ninox hantu". IUCN Red List of Threatened Species . 2025 e.T22727909A280914772. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22727909A280914772.en .
176. BirdLife International (2024). "Ninox hypogramma". IUCN Red List of Threatened Species . 2024 e.T22727900A264040202. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22727900A264040202.en .
177. BirdLife International (2022). "Ninox ios". IUCN Red List of Threatened Species . 2022 e.T22728610A207662764. doi: 10.2305/iucn.uk.2022-1.rlts.t22728610a207662764.en .
178. BirdLife International (2025). "Ninox japonica". IUCN Red List of Threatened Species . 2025 e.T22725653A209520163. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22725653A209520163.en .
179. BirdLife International (2024). "Ninox leucopsis". IUCN Red List of Threatened Species . 2024 e.T62023823A254015114. doi: 10.2305/IUCN.UK.2024-2.RLTS.T62023823A254015114.en .
180. BirdLife International (2025). "Ninox meeki". IUCN Red List of Threatened Species . 2025 e.T22689465A264138651. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689465A264138651.en .
181. BirdLife International (2025). "Ninox novaeseelandiae". IUCN Red List of Threatened Species . 2025 e.T62023843A281025369. doi: 10.2305/IUCN.UK.2025-2.RLTS.T62023843A281025369.en .
182. BirdLife International (2024). "Ninox obscura". IUCN Red List of Threatened Species . 2024 e.T22726328A264142010. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22726328A264142010.en .
183. BirdLife International (2024). "Ninox philippensis". IUCN Red List of Threatened Species . 2024 e.T22725483A264104344. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22725483A264104344.en .
184. BirdLife International (2023). "Ninox plesseni". IUCN Red List of Threatened Species . 2023 e.T230087117A233595835. doi: 10.2305/IUCN.UK.2023-1.RLTS.T230087117A233595835.en .
185. BirdLife International (2024). "Ninox punctulata". IUCN Red List of Threatened Species . 2024 e.T22689470A264140322. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689470A264140322.en .
186. BirdLife International (2024). "Ninox rufa". IUCN Red List of Threatened Species . 2024 e.T22689385A263729521. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689385A263729521.en .
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188. BirdLife International (2024). "Ninox squamipila". IUCN Red List of Threatened Species . 2024 e.T22727893A264045886. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22727893A264045886.en .
189. BirdLife International (2024). "Ninox theomacha". IUCN Red List of Threatened Species . 2024 e.T22689460A264140871. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689460A264140871.en .
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193. BirdLife International (2018). "Otus brookii". IUCN Red List of Threatened Species . 2018 e.T22688703A130155259. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22688703A130155259.en .
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195. BirdLife International (2024). "Otus collari". IUCN Red List of Threatened Species . 2024 e.T22732046A263977201. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22732046A263977201.en .
196. BirdLife International (2024). "Otus everetti". IUCN Red List of Threatened Species . 2024 e.T22725053A263979727. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22725053A263979727.en .
197. BirdLife International (2024). "Otus icterorhynchus". IUCN Red List of Threatened Species . 2024 e.T22688559A264069616. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688559A264069616.en .
198. BirdLife International (2024). "Otus lempiji". IUCN Red List of Threatened Species . 2024 e.T61859106A264108562. doi: 10.2305/IUCN.UK.2024-2.RLTS.T61859106A264108562.en .
199. BirdLife International. (2024). "Otus lettia". IUCN Red List of Threatened Species . 2024 e.T61855318A264055331. doi: 10.2305/IUCN.UK.2024-2.RLTS.T61855318A264055331.en .
200. BirdLife International (2023). "Otus longicornis". IUCN Red List of Threatened Species . 2023 e.T22688602A231336941. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22688602A231336941.en .
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203. BirdLife International (2023). "Otus mantananensis". IUCN Red List of Threatened Species . 2023 e.T22688656A226893897. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22688656A226893897.en .
204. BirdLife International (2025). "Otus mayottensis". IUCN Red List of Threatened Species . 2025 e.T22732599A264067056. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22732599A264067056.en .
205. BirdLife International (2024). "Otus megalotis". IUCN Red List of Threatened Species . 2024 e.T22727655A264027154. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22727655A264027154.en .
206. BirdLife International (2023). "Otus mirus". IUCN Red List of Threatened Species . 2023 e.T22688614A231090375. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22688614A231090375.en .
207. BirdLife International (2025). "Pyrroglaux podargina". IUCN Red List of Threatened Species . 2025 e.T22688899A264063001. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688899A264063001.en .
208. BirdLife International (2025). "Otus rutilus". IUCN Red List of Threatened Species . 2025 e.T22735960A280951112. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22735960A280951112.en .
209. BirdLife International (2024). "Otus semitorques". IUCN Red List of Threatened Species . 2024 e.T61859151A264101116. doi: 10.2305/IUCN.UK.2024-2.RLTS.T61859151A264101116.en .
210. BirdLife International (2025). "Otus senegalensis". IUCN Red List of Threatened Species . 2025 e.T279197053A279197497. doi: 10.2305/IUCN.UK.2025-2.RLTS.T279197053A279197497.en .
211. BirdLife International (2024). "Otus silvicola". IUCN Red List of Threatened Species . 2024 e.T22688734A264096088. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688734A264096088.en .
212. BirdLife International (2024). "Otus spilocephalus". IUCN Red List of Threatened Species . 2024 e.T22688579A263677414. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688579A263677414.en .
213. BirdLife International (2021). "Otus sunia". IUCN Red List of Threatened Species . 2021 e.T22728969A206482277. doi: 10.2305/IUCN.UK.2021-3.RLTS.T22728969A206482277.en .
214. BirdLife International (2024). "Otus tempestatis". IUCN Red List of Threatened Species . 2024 e.T45400982A264006592. doi: 10.2305/IUCN.UK.2024-2.RLTS.T45400982A264006592.en .
215. BirdLife International (2023). "Otus umbra". IUCN Red List of Threatened Species . 2023 e.T22688586A229906969. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22688586A229906969.en .
216. BirdLife International (2024). "Phodilus assimilis". IUCN Red List of Threatened Species . 2024 e.T22725132A264136963. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22725132A264136963.en .
217. BirdLife International (2024). "Phodilus badius". IUCN Red List of Threatened Species . 2024 e.T22727641A263687739. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22727641A263687739.en .
218. BirdLife International (2025). "Pseudoscops grammicus". IUCN Red List of Threatened Species . 2025 e.T22689501A264146933. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689501A264146933.en .
219. BirdLife International (2024). "Ptilopsis granti". IUCN Red List of Threatened Species . 2024 e.T61781923A263973977. doi: 10.2305/IUCN.UK.2024-2.RLTS.T61781923A263973977.en .
220. BirdLife International (2024). "Ptilopsis leucotis". IUCN Red List of Threatened Species . 2024 e.T61781834A263992161. doi: 10.2305/IUCN.UK.2024-2.RLTS.T61781834A263992161.en .
221. BirdLife International (2018). "Pulsatrix koeniswaldiana". IUCN Red List of Threatened Species . 2018 e.T22689186A130162020. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689186A130162020.en .
222. BirdLife International (2018). "Pulsatrix melanota". IUCN Red List of Threatened Species . 2018 e.T22689183A130161594. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689183A130161594.en .
223. BirdLife International (2018). "Pulsatrix perspicillata". IUCN Red List of Threatened Species . 2018 e.T22689180A130161018. doi: 10.2305/iucn.uk.2018-2.rlts.t22689180a130161018.en .
224. BirdLife International (2018). "Scotopelia bouvieri". IUCN Red List of Threatened Species . 2018 e.T22689048A130158713. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689048A130158713.en .
225. BirdLife International (2018). "Scotopelia peli". IUCN Red List of Threatened Species . 2018 e.T22689032A130158217. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689032A130158217.en .
226. BirdLife International (2018). "Ciccaba albitarsis". IUCN Red List of Threatened Species . 2018 e.T22689154A130160167. doi: 10.2305/IUCN.UK.2018-2.RLTS.T22689154A130160167.en .
227. BirdLife International (2021). "Strix butleri". IUCN Red List of Threatened Species . 2021 e.T62290760A189658549. doi: 10.2305/IUCN.UK.2021-3.RLTS.T62290760A189658549.en .
228. BirdLife International. (2024). "Strix hadorami". IUCN Red List of Threatened Species . 2024 e.T22689083A263595470. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689083A263595470.en .
229. BirdLife International (2024). "Ciccaba huhula". IUCN Red List of Threatened Species . 2024 e.T22689144A263994498. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689144A263994498.en .
230. BirdLife International (2022). "Strix hylophila". IUCN Red List of Threatened Species . 2022 e.T22689100A209094614. doi: 10.2305/IUCN.UK.2022-1.RLTS.T22689100A209094614.en .
231. BirdLife International (2024). "Strix leptogrammica". IUCN Red List of Threatened Species . 2024 e.T22689071A263957894. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689071A263957894.en .
232. BirdLife International (2024). "Strix ocellata". IUCN Red List of Threatened Species . 2024 e.T22689066A263957499. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689066A263957499.en .
233. BirdLife International (2018). "Ciccaba nigrolineata". IUCN Red List of Threatened Species . 2018 e.T22689133A130159025. doi: 10.2305/iucn.uk.2018-2.rlts.t22689133a130159025.en .
234. BirdLife International (2024). "Strix nivicolum". IUCN Red List of Threatened Species . 2024 e.T22725477A264106602. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22725477A264106602.en .
235. BirdLife International (2024). "Strix rufipes". IUCN Red List of Threatened Species . 2024 e.T22733923A263666034. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22733923A263666034.en .
236. BirdLife International (2025). "Strix seloputo". IUCN Red List of Threatened Species . 2025 e.T22689061A280900807. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22689061A280900807.en .
237. BirdLife International (2024). "Strix woodfordii". IUCN Red List of Threatened Species . 2024 e.T22689166A264003289. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22689166A264003289.en .
238. BirdLife International (2021). "Glaucidium sylvaticum". IUCN Red List of Threatened Species . 2021 e.T200290450A206270258. doi: 10.2305/IUCN.UK.2021-3.RLTS.T200290450A206270258.en .
239. BirdLife International (2025). "Tyto capensis". IUCN Red List of Threatened Species . 2025 e.T22688514A280917549. doi: 10.2305/IUCN.UK.2025-2.RLTS.T22688514A280917549.en .
240. BirdLife International (2024). "Tyto glaucops". IUCN Red List of Threatened Species . 2024 e.T22688511A264080536. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688511A264080536.en .
241. BirdLife International (2023). "Tyto inexspectata". IUCN Red List of Threatened Species . 2023 e.T22688441A230036968. doi: 10.2305/IUCN.UK.2023-1.RLTS.T22688441A230036968.en .
242. BirdLife International (2024). "Tyto longimembris". IUCN Red List of Threatened Species . 2024 e.T22688522A263684657. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688522A263684657.en .
243. BirdLife International (2023). "Tyto novaehollandiae". IUCN Red List of Threatened Species . 2023 e.T230023167A230808865. doi: 10.2305/IUCN.UK.2023-1.RLTS.T230023167A230808865.en .
244. BirdLife International (2024). "Tyto rosenbergii". IUCN Red List of Threatened Species . 2024 e.T22688489A263680565. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688489A263680565.en .
245. BirdLife International (2024). "Tyto tenebricosa". IUCN Red List of Threatened Species . 2024 e.T22688429A264144178. doi: 10.2305/IUCN.UK.2024-2.RLTS.T22688429A264144178.en .
246. BirdLife International (2017). "Uroglaux dimorpha". IUCN Red List of Threatened Species . 2017 e.T22689490A118392665. doi: 10.2305/IUCN.UK.2017-3.RLTS.T22689490A118392665.en .