Data Zone
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Least Concern | |
| 2014 | Least Concern |
| Migratory status | not a migrant | Forest dependency | Medium |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 8,660,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 0 | |||
| 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 | - | - | - | |
| Percentage in largest subpopulation | - | - | - | |
| Generation length (yrs) | 8 | - | - | - |
Population justification: The population has not been estimated owing to recent taxonomic splits.
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Bhutan | N | Extant | Yes | |||
| China (mainland) | N | Extant | Yes | |||
| India | N | Extant | Yes | |||
| Laos | N | Extant | Yes | |||
| Myanmar | N | Extant | Yes | |||
| Nepal | N | Extant | Yes | |||
| North Korea | N | Extant | Yes | |||
| Russia | N | Extant | Yes | |||
| Russia (Asian) | N | Extant | Yes | |||
| South Korea | N | Extant | Yes | |||
| Taiwan, China | N | Extant | Yes | |||
| Thailand | N | Extant | Yes | |||
| Vietnam | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|
| 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 | Subtropical/Tropical Dry | suitable | resident |
| Forest | Temperate | suitable | resident |
| Shrubland | Mediterranean-type Shrubby Vegetation | suitable | resident |
| Shrubland | Temperate | suitable | resident |
| Altitude | 0 - 2350 m | Occasional altitudinal limits | (max) 4250 m |
| Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
|---|---|---|---|---|---|---|
| Pets/display animals, horticulture | - | - | - | International | Non-trivial | Recent |
Recommended citation
BirdLife International (2023) Species factsheet: Strix nivicolum. Downloaded from
http://www.birdlife.org on 23/03/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 23/03/2023.
