LC
Tawny Owl Strix aluco



Taxonomy

Taxonomic note
Strix aluco and S. nivicolum (del Hoyo and Collar 2014) were previously lumped as S. aluco following Sibley and Monroe (1990, 1993).

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2014 Least Concern
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 23,300,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 1000000-2999999 poor estimated 2012
Population trend Stable suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 8 - - -

Population justification: In Europe, the breeding population is estimated to number 535,000-939,000 pairs, which equates to 1,070,000-1,880,000 mature individuals (BirdLife International 2015). Europe forms c. 80% of the global range, so a very preliminary estimate of the global population size is 1,400,000-2,400,000 mature individuals, although further validation of this estimate is needed. The population is therefore placed in the band 1,000,000-2,999,999 mature individuals.

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats. The European population trend is unknown (BirdLife International 2015).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Afghanistan N Extant Yes
Albania N Extant Yes
Algeria N Extant Yes
Andorra N Extant Yes
Armenia N Extant Yes
Austria N Extant Yes
Azerbaijan N Extant Yes
Belarus N Extant Yes
Belgium N Extant Yes
Bosnia and Herzegovina N Extant Yes
Bulgaria N Extant Yes
China (mainland) N Extant Yes
Croatia N Extant Yes
Czechia N Extant Yes
Denmark N Extant Yes
Estonia N Extant Yes
Finland N Extant Yes
France N Extant Yes
Georgia N Extant Yes
Germany N Extant Yes
Greece N Extant Yes
Hungary N Extant Yes
Iran, Islamic Republic of N Extant Yes
Iraq N Extant Yes
Israel N Extant Yes
Italy N Extant Yes
Jordan N Extant Yes
Kazakhstan N Extant Yes
Kyrgyzstan N Extant Yes
Latvia N Extant Yes
Lebanon N Extant Yes
Liechtenstein N Extant Yes
Lithuania N Extant Yes
Luxembourg N Extant Yes
Moldova N Extant Yes
Montenegro N Extant Yes
Morocco N Extant Yes
Netherlands N Extant Yes
North Macedonia N Extant Yes
Norway N Extant Yes
Pakistan N Extant Yes
Palestinian Authority Territories N Extant Yes
Poland N Extant Yes
Portugal N Extant Yes
Romania N Extant Yes
Russia N Extant Yes
Russia (Central Asian) N Extant Yes
Russia (European) N Extant Yes
Serbia N Extant Yes
Slovakia N Extant Yes
Slovenia N Extant Yes
Spain N Extant Yes
Sweden N Extant Yes
Switzerland N Extant Yes
Syria N Extant Yes
Tajikistan N Extant Yes
Tunisia N Extant Yes
Turkey N Extant Yes
Turkmenistan N Extant Yes
Ukraine N Extant Yes
United Kingdom N Extant Yes
Uzbekistan N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable resident
Artificial/Terrestrial Pastureland suitable resident
Artificial/Terrestrial Plantations suitable resident
Artificial/Terrestrial Rural Gardens suitable resident
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Artificial/Terrestrial Urban Areas suitable resident
Forest Boreal suitable resident
Forest Temperate suitable resident
Shrubland Boreal suitable resident
Shrubland Mediterranean-type Shrubby Vegetation suitable resident
Shrubland Temperate suitable resident
Altitude 0 - 2350 m Occasional altitudinal limits  

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - - International Non-trivial Recent

Recommended citation
BirdLife International (2019) Species factsheet: Strix aluco. Downloaded from http://www.birdlife.org on 15/12/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 15/12/2019.