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LC
Boreal Owl Aegolius funereus

IUCN Red List history

Year Category
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Lower Risk/Least Concern

Species attributes

Migratory status full migrant Forest dependency High
Land mass type   Average mass -

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 16,700,000
Extent of Occurrence non-breeding (km2) 16,700,000
Number of locations -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals poor Estimated 2009
Population trend Stable -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 5.8 - - -
Population justification: The global population is estimated to number > c.1,700,000 individuals (Rich et al. 2004), while national population estimates include: c.100-10,000 breeding pairs in China; < c.10,000 breeding pairs in Japan and c.100-10,000 breeding pairs in Russia (Brazil 2009).
Trend justification: The population is suspected to be fluctuating owing to fluctuations in prey populations.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage
Albania Native Extant Yes    
Andorra Native Extant      
Armenia Native Extant Yes    
Austria Native Extant      
Azerbaijan Native Extant      
Belarus Native Extant      
Belgium Native Extant      
Bosnia and Herzegovina Native Extant Yes    
Bulgaria Native Extant      
Canada Native Extant     Yes
China (mainland) Native Extant Yes    
Croatia Native Extant      
Czech Republic Native Extant      
Denmark Native Extant     Yes
Estonia Native Extant      
Finland Native Extant     Yes
France Native Extant      
Georgia Native Extant      
Germany Native Extant Yes    
Greece Native Extant      
Hungary Vagrant Extant Yes    
India Vagrant Extant Yes    
Italy Native Extant      
Japan Native Extant Yes    
Kazakhstan Native Extant Yes    
Kyrgyzstan Native Extant Yes    
Latvia Native Extant      
Liechtenstein Native Extant      
Lithuania Native Extant      
Luxembourg Native Extant Yes    
Macedonia, the former Yugoslav Republic of Native Extant      
Mongolia Native Extant Yes    
Montenegro Native Extant Yes    
Netherlands Native Extant      
Norway Native Extant Yes    
Poland Native Extant Yes    
Romania Native Extant      
Russia (Asian) Native Extant Yes    
Russia (Central Asian) Native Extant      
Russia (European) Native Extant Yes    
Serbia Native Extant Yes    
Slovakia Native Extant      
Slovenia Native Extant      
Spain Native Extant      
St Pierre and Miquelon (to France) Native Extant   Yes Yes
Sweden Native Extant      
Switzerland Native Extant      
Tajikistan Native Extant      
Turkey Native Extant Yes    
Ukraine Native Extant      
United Kingdom Vagrant Extant      
USA Native Extant Yes    

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Austria Freiwald site factsheet
Austria Kaisergebirge site factsheet
Austria Karwendel site factsheet
Austria Niedere Tauern site factsheet
Austria Ötscher-Dürrenstein site factsheet
Belgium Malchamps site factsheet
Belgium Saint-Hubert site factsheet
Belgium Tailles site factsheet
Belgium Vallée de la Lienne site factsheet
Belgium Wanne-Logbiermé site factsheet
Bulgaria Central Balkan site factsheet
Bulgaria Persenk site factsheet
Bulgaria Pirin site factsheet
Bulgaria Rila site factsheet
Bulgaria Slavyanka Mountain site factsheet
Bulgaria Vitosha Mountain site factsheet
Bulgaria Western Balkan site factsheet
Bulgaria Western Rhodopes site factsheet
Czech Republic Jizerské hory mountains site factsheet
Czech Republic Krkonose mountains (Giant mountains) site factsheet
Czech Republic Sumava mountains (Bohemian forest) site factsheet
Czech Republic Trebonsko (Trebon region) site factsheet
Denmark Almindingen site factsheet
Estonia Lahemaa site factsheet
Estonia Puhatu mire site factsheet
Estonia Soomaa site factsheet
Estonia Tudu site factsheet
France Arrière Côte de Dijon et de Beaune site factsheet
France Barois et Forêt de Clairvaux site factsheet
France Forêt d'altitude du Jura : forêt du Risoux site factsheet
France Forêt de Châtillon et environs site factsheet
France Forêt de Jugny site factsheet
France Forêts d'altitude du Jura : forêt du Massacre site factsheet
France Forêts d'altitude du Jura : forêt du Risol et Mont d'Or site factsheet
France Haut Giffre site factsheet
France Hauts Plateaux du Vercors et Forêt des Coulmes site factsheet
France Les Bauges site factsheet
France Massif des Vosges : crêtes de Schneeberg au Donon site factsheet
France Massif des Vosges: Hautes Vosges site factsheet
France Massif du Canigou-Carança site factsheet
France Montagne des Frêtes et plateau des Glières site factsheet
France Parc National de la Vanoise site factsheet
France Parc National des Ecrins site factsheet
France Parc National du Mercantour site factsheet
France Plateau Ardennais site factsheet
France Puig Carlit et environs site factsheet
Latvia Irbe valley and Dizpurvs site factsheet
Latvia Kemeri national park site factsheet
Latvia Lubans and fish-ponds site factsheet
Latvia Stikli site factsheet
Latvia Stompaku bogs site factsheet
Latvia Teici and Pelecare bogs site factsheet
Latvia Ziemelgauja site factsheet
Lithuania Cepkeliai Strict Nature Reserve site factsheet
Lithuania Dzukija National Park site factsheet
Lithuania Initial area of Aukstaitija NP site factsheet
Lithuania Labanoras Regional Park site factsheet
Lithuania Rudninkai forest complex site factsheet
Luxembourg Valley of the Trëtterbaach site factsheet
Poland Augustów forest site factsheet
Poland Bialowieza Forest site factsheet
Poland Bieszczady Mountains site factsheet
Poland Darzlubska Forest site factsheet
Poland Gorce mountains site factsheet
Poland Izerskie Mountains site factsheet
Poland Knyszyn Forest site factsheet
Poland Lebork Forest site factsheet
Poland Lower Silesia Forests site factsheet
Poland Mirachowo Forest site factsheet
Poland Pisz forest site factsheet
Poland Slonne Mountains site factsheet
Poland Solska Forest site factsheet
Poland Sudety Wałbrzysko-Kamiennogorskie Mountains site factsheet
Poland Tatra mountains site factsheet
Poland Tuchola Forest site factsheet
Romania Călimani Mountains site factsheet
Romania Ceahlă Mountains site factsheet
Romania Defileul Superior al Mureşului site factsheet
Romania Frumoasa site factsheet
Romania Giurgeu Depression site factsheet
Romania Padiş - Vlădeasa mountain site factsheet
Romania Retezat Mountains site factsheet
Romania Rodnei Mountains site factsheet
Romania Vrancea Mountains site factsheet
Russia (Central Asian) East slope of Northern Ural site factsheet
Russia (Central Asian) East slope of the Northern Ural site factsheet
Russia (Central Asian) Korgonskaya site factsheet
Russia (Central Asian) Poyasovy Kamen' ridge site factsheet
Russia (Central Asian) Visimsky zapovednik and vicinity site factsheet
Russia (Central Asian) Zaikovo forest site factsheet
Russia (Central Asian) Zapovednik "Denezhkin Kamen'" site factsheet
Slovakia Malá Fatra site factsheet
Slovakia Muránska plateau and Stolicke hills site factsheet
Slovakia Nízke Tatry site factsheet
Slovakia Tatry site factsheet
Slovakia Velká Fatra site factsheet
Slovenia Grintovci site factsheet
Slovenia Julijci site factsheet
Slovenia Kočevsko site factsheet
Slovenia Pohorje site factsheet
Slovenia Snežnik plateau and Pivka valley site factsheet
Spain Alt Pallars site factsheet
Spain Belagua-Ansó-Hecho site factsheet
Spain Cadí mountains site factsheet
Spain Fresser-Setcases site factsheet
Spain Posets-Maladeta site factsheet
Spain San Mauricio-Bohí-Beret site factsheet
Sweden Färnebofjärden site factsheet
Sweden Florarna site factsheet
Sweden Hanveden-Hemfosa site factsheet
Sweden Sjaunja site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Boreal major breeding
Forest Boreal major non-breeding
Forest Subarctic suitable breeding
Forest Subarctic suitable non-breeding
Forest Temperate suitable breeding
Forest Temperate suitable non-breeding
Altitude 0 - 0 m Occasional altitudinal limits  

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Aegolius funereus. Downloaded from http://www.birdlife.org on 12/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 12/07/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Least Concern
Family Strigidae (Owls)
Species name author (Linnaeus, 1758)
Population size mature individuals
Population trend Stable
Distribution size (breeding/resident) 16,700,000 km2
Country endemic? No
Links to further information
- Summary information on this species