List of Strigiformes by population
| The population of birds |
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This list of owls 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.
- Laughing owl, last seen in 1914.
- Mauritius scops owl, last seen 1837 and certainly extinct by 1859.
- Réunion scops owl, went extinct in the 17th century after the colonization of the island of Réunion.
- Rodrigues scops owl, last recorded in 1726.