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.

This list is not comprehensive, as not all Strigiformes have had their numbers quantified.

Species by global population

Common name Binomial name Population Status Trend Notes Image
Pernambuco pygmy owl Glaucidium mooreorum 50[1] CR[1] Decrease[1] Maximum estimate; possibly extinct.[1]
Siau scops owl Otus siaoensis 50[2] CR[2] Unknown[2] Maximum estimate; possibly extinct.[2]
Anjouan scops owl Otus capnodes 70 – 400[3] CR[3] Decrease[3] Preliminary estimate.[3]
Forest owlet Heteroglaux blewitti 70 – 400[4] CR[4] Decrease[4]
Serendib scops owl Otus thilohoffmanni 250 – 999[5] EN[5] Decrease[5]
Long-whiskered owlet Xenoglaux loweryi 350 – 1500[6] EN[6] Decrease[6]
Manus masked owl Tyto manusi 350 – 1500[7] VU[7] Decrease[7]
São Tomé scops owl Otus hartlaubi 350 – 1500[8] VU[8] Steady[8]
Taliabu masked owl Tyto nigrobrunnea 350 – 1500[9] EN[9] Decrease[9]
Moheli scops owl Otus moheliensis 400[10] CR[10] Decrease[10]
Christmas boobook Ninox natalis 1000[11] VU[11] Steady[11]
Blakiston's fish owl Ketupa blakistoni 1500 – 4000[12] EN[12] Decrease[12] Preliminary estimate.[12]
Karthala scops owl Otus pauliani 2000[13] CR[13] Decrease[13]
Cloud-forest pygmy owl Glaucidium nubicola 2500 – 9999[14] VU[14] Decrease[14]
Javan scops owl Otus angelinae 2500 – 9999[15] VU[15] Decrease[15]
Shelley's eagle-owl Bubo shelleyi 2500 – 9999[16] NT[16] Decrease[16]
Togian boobook Ninox burhani 2500 – 9999[17] NT[17] Decrease[17]
Usambara eagle-owl Bubo vosseleri 2500 – 9999[18] VU[18] Decrease[18]
Powerful owl Ninox strenua 3250 – 4230[19] LC[19] Steady[19]
Albertine owlet Glaucidium albertinum 3500 – 15 000[20] VU[20] Decrease[20]
Biak scops owl Otus beccarii 3500 – 15 000[21] EN[21] Decrease[21]
Cinnabar boobook Ninox ios 3500 – 15 000[22] VU[22] Decrease[22]
Congo bay owl Phodilus prigoginei 3500 – 15 000[23] EN[23] Decrease[23]
Enggano scops owl Otus enganensis 3500 – 15 000[24] NT[24] Steady[24] Preliminary estimate.[24]
Giant scops owl Otus gurneyi 3500 – 15 000[25] VU[25] Decrease[25] Preliminary estimate.[25]
Golden masked owl Tyto aurantia 3500 – 15 000[26] VU[26] Decrease[26]
Minahassa masked owl Tyto inexspectata 3500 – 15 000[27] VU[27] Decrease[27]
Philippine eagle-owl Bubo philippensis 3500 – 15 000[28] VU[28] Decrease[28] Preliminary estimate.[28]
Red owl Tyto soumagnei 3500 – 15 000[29] VU[29] Decrease[29]
Rufous fishing owl Scotopelia ussheri 3500 – 15 000[30] VU[30] Decrease[30]
Sokoke scops owl Otus ireneae 3500 – 15 000[31] EN[31] Decrease[31]
White-fronted scops owl Otus sagittatus 3500 – 15 000[32] VU[32] Decrease[32]
Pemba scops owl Otus pembaensis 4500[33] VU[33] Decrease[33] Preliminary estimate.[33]
Fearful owl Nesasio solomonensis 6000[34] VU[34] Decrease[34] Minimum estimate.[34]
Colombian screech owl Megascops colombianus 10 000[35] NT[35] Decrease[35] Preliminary minimum estimate.[35]
Mantanani scops owl Otus mantananensis 10 000 – 19 999[36] NT[36] Decrease[36]
Sumba boobook Ninox rudolfi 10 000 – 19 999[37] NT[37] Decrease[37] Preliminary estimate.[37]
Spotted owl Strix occidentalis 15 000[38] NT[38] Decrease[38]
Chestnut-backed owlet Glaucidium castanonotum 15 000 – 30 000[39] NT[39] Decrease[39] Preliminary estimate.[39]
Little Sumba hawk-owl Ninox sumbaensis 15 000 – 30 000[40] NT[40] Decrease[40] Preliminary estimate.[40]
Mentawai scops owl Otus mentawi 15 000 – 30 000[41] NT[41] Decrease[41] Preliminary estimate.[41]
Mindoro scops owl Otus mindorensis 15 000 – 30 000[42] NT[42] Decrease[42]
New Britain boobook Ninox odiosa 15 000 – 30 000[43] VU[43] Decrease[43]
Ochre-bellied boobook Ninox ochracea 15 000 – 30 000[44] NT[44] Decrease[44] Preliminary estimate.[44]
Palawan scops owl Otus fuliginosus 15 000 – 30 000[45] NT[45] Decrease[45]
Balsas screech owl Megascops seductus 20 000 – 49 999[46] NT[46] Decrease[46]
Bearded screech owl Megascops barbarus 20 000 – 49 999[47] VU[47] Decrease[47]
Central American pygmy owl Glaucidium griseiceps 20 000 – 49 999[48] LC[48] Steady[48]
Colima pygmy owl Glaucidium palmarum 20 000 – 49 999[49] LC[49] Steady[49]
Fulvous owl Strix fulvescens 20 000 – 49 999[50] LC[50] Decrease[50]
Pacific screech owl Megascops cooperi 20 000 – 49 999[51] LC[51] Steady[51]
Tamaulipas pygmy owl Glaucidium sanchezi 20 000 – 49 999[52] LC[52] Steady[52]
Unspotted saw-whet owl Aegolius ridgwayi 20 000 – 49 999[53] LC[53] Steady[53]
Black-and-white owl Strix nigrolineata 50 000 – 499 999[54] LC[54] Steady[54]
Crested owl Lophostrix cristata 50 000 – 499 999[55] LC[55] Steady[55]
Middle American screech owl Megascops guatemalae 50 000 – 499 999[56] LC[56] Steady[56]
Stygian owl Asio stygius 50 000 – 499 999[57] LC[57] Decrease[57]
Great grey owl Strix nebulosa 60 000[58] LC[58] Steady[58] Minimum estimate.[58]
Long-eared owl Asio otus 120 000[59] LC[59] Decrease[59]
Northern hawk-owl Surnia ulula 130 000[60] LC[60] Steady[60] Minimum estimate.[60]
Eurasian eagle-owl Bubo bubo 250 000 – 2 500 000[61] LC[61] Decrease[61] Preliminary estimate.[61]
Snowy owl Bubo scandiaca 300 000[62] LC[62] Decrease[62] Minimum estimate.[62]
Eurasian pygmy owl Glaucidium passerinum 300 000 – 1 500 000[63] LC[63] Steady[63]
Mottled owl Strix virgata 500 000 – 4 999 999[64] LC[64] Decrease[64]
Spectacled owl Pulsatrix perspicillata 500 000 – 4 999 999[65] LC[65] Steady[65]
Striped owl Pseudoscops clamator 500 000 – 4 999 999[66] LC[66] Steady[66]
Eurasian scops owl Otus scops 1 000 000 – 3 000 000[67] LC[67] Decrease[67] Preliminary estimate.[67]
Boreal owl Aegolius funereus 1 700 000[68] LC[68] Steady[68] Minimum estimate.[68]
Short-eared owl Asio flammeus 2 000 000[69] LC[69] Decrease[69] Minimum estimate.[69]
Tawny owl Strix aluco 2 000 000 – 6 000 000[70] LC[70] Steady[70] Preliminary estimate.[70]
Little owl Athene noctua 5 000 000 – 15 000 000[71] LC[71] Steady[71] Preliminary estimate.[71]

See also

References

  1. 1 2 3 4 BirdLife International (2012). "Glaucidium mooreorum". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  2. 1 2 3 4 BirdLife International (2012). "Otus siaoensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  3. 1 2 3 4 BirdLife International (2012). "Otus capnodes". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  4. 1 2 3 BirdLife International (2012). "Heteroglaux blewitti". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  5. 1 2 3 BirdLife International (2012). "Otus thilohoffmanni". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  6. 1 2 3 BirdLife International (2012). "Xenoglaux loweryi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  7. 1 2 3 BirdLife International (2012). "Tyto manusi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  8. 1 2 3 BirdLife International (2012). "Otus hartlaubi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  9. 1 2 3 BirdLife International (2012). "Tyto nigrobrunnea". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  10. 1 2 3 BirdLife International (2012). "Otus moheliensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  11. 1 2 3 BirdLife International (2012). "Ninox natalis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  12. 1 2 3 4 BirdLife International (2012). "Ketupa blakistoni". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  13. 1 2 3 BirdLife International (2012). "Otus pauliani". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  14. 1 2 3 BirdLife International (2012). "Glaucidium nubicola". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  15. 1 2 3 BirdLife International (2012). "Otus angelinae". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  16. 1 2 3 BirdLife International (2012). "Bubo shelleyi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  17. 1 2 3 BirdLife International (2012). "Ninox burhani". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  18. 1 2 3 BirdLife International (2012). "Bubo vosseleri". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  19. 1 2 3 BirdLife International (2012). "Ninox strenua". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  20. 1 2 3 BirdLife International (2012). "Glaucidium albertinum". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  21. 1 2 3 BirdLife International (2012). "Otus beccarii". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  22. 1 2 3 BirdLife International (2012). "Ninox ios". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  23. 1 2 3 BirdLife International (2012). "Phodilus prigoginei". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  24. 1 2 3 4 BirdLife International (2012). "Otus enganensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  25. 1 2 3 4 BirdLife International (2012). "Otus gurneyi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  26. 1 2 3 BirdLife International (2012). "Tyto aurantia". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  27. 1 2 3 BirdLife International (2012). "Tyto inexspectata". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  28. 1 2 3 4 BirdLife International (2012). "Bubo philippensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  29. 1 2 3 BirdLife International (2012). "Tyto soumagnei". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  30. 1 2 3 BirdLife International (2012). "Scotopelia ussheri". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  31. 1 2 3 BirdLife International (2012). "Otus ireneae". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  32. 1 2 3 BirdLife International (2012). "Otus sagittatus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  33. 1 2 3 4 BirdLife International (2012). "Otus pembaensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  34. 1 2 3 4 BirdLife International (2012). "Nesasio solomonensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  35. 1 2 3 4 BirdLife International (2012). "Megascops colombianus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  36. 1 2 3 BirdLife International (2012). "Otus mantananensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  37. 1 2 3 4 BirdLife International (2012). "Ninox rudolfi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  38. 1 2 3 BirdLife International (2012). "Strix occidentalis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  39. 1 2 3 4 BirdLife International (2012). "Glaucidium castanonotum". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  40. 1 2 3 4 BirdLife International (2012). "Ninox sumbaensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  41. 1 2 3 4 BirdLife International (2012). "Otus mentawi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  42. 1 2 3 BirdLife International (2012). "Otus mindorensis". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  43. 1 2 3 BirdLife International (2012). "Ninox odiosa". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  44. 1 2 3 4 BirdLife International (2012). "Ninox ochracea". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  45. 1 2 3 BirdLife International (2012). "Otus fuliginosus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  46. 1 2 3 BirdLife International (2012). "Megascops seductus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  47. 1 2 3 BirdLife International (2012). "Megascops barbarus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  48. 1 2 3 BirdLife International (2012). "Glaucidium griseiceps". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  49. 1 2 3 BirdLife International (2012). "Glaucidium palmarum". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  50. 1 2 3 BirdLife International (2012). "Strix fulvescens". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  51. 1 2 3 BirdLife International (2012). "Megascops cooperi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  52. 1 2 3 BirdLife International (2012). "Glaucidium sanchezi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  53. 1 2 3 BirdLife International (2012). "Aegolius ridgwayi". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  54. 1 2 3 BirdLife International (2012). "Strix nigrolineata". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  55. 1 2 3 BirdLife International (2012). "Lophostrix cristata". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  56. 1 2 3 BirdLife International (2012). "Megascops guatemalae". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  57. 1 2 3 BirdLife International (2012). "Asio stygius". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  58. 1 2 3 4 BirdLife International (2012). "Strix nebulosa". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  59. 1 2 3 BirdLife International (2012). "Asio otus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  60. 1 2 3 4 BirdLife International (2012). "Surnia ulula". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  61. 1 2 3 4 BirdLife International (2012). "Bubo bubo". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  62. 1 2 3 4 BirdLife International (2012). "Bubo scandiaca". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  63. 1 2 3 BirdLife International (2012). "Glaucidium passerinum". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  64. 1 2 3 BirdLife International (2012). "Strix virgata". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  65. 1 2 3 BirdLife International (2012). "Pulsatrix perspicillata". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  66. 1 2 3 BirdLife International (2012). "Pseudoscops clamator". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  67. 1 2 3 4 BirdLife International (2012). "Otus scops". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  68. 1 2 3 4 BirdLife International (2012). "Aegolius funereus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  69. 1 2 3 4 BirdLife International (2012). "Asio flammeus". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
  70. 1 2 3 4 BirdLife International (2012). "Strix aluco". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-21.
  71. 1 2 3 4 BirdLife International (2012). "Athene noctua". IUCN Red List of Threatened Species. Version 2012.2. IUCN. Retrieved 2012-12-13.
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