Data Zone
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 | |
| 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 |
| Migratory status | not a migrant | Forest dependency | High |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 18,000,000 | |
| Number of locations | - | |
| Fragmentation | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | unknown | not applicable | not applicable | 0 |
| Population trend | Decreasing | 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) | 9.6 | - | - | - |
Population justification: The global population size has not been quantified, but the species is reported to be uncommon throughout most of its range (del Hoyo et al. 1999), while national population sizes have been estimated at < c.100 breeding pairs in China and < c.10,000 breeding pairs in Taiwan (Brazil 2009).
Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Bangladesh | N | Extant | Yes | |||
| Bhutan | N | Extant | Yes | |||
| Brunei | N | Extant | Yes | |||
| Cambodia | N | Extant | Yes | |||
| China (mainland) | N | Extant | Yes | |||
| India | N | Extant | Yes | |||
| Indonesia | N | Extant | Yes | |||
| Laos | N | Extant | Yes | |||
| Malaysia | N | Extant | Yes | |||
| Myanmar | N | Extant | Yes | |||
| Nepal | N | Extant | Yes | |||
| Sri Lanka | N | Extant | Yes | |||
| Taiwan, China | N | Extant | Yes | |||
| Thailand | N | Extant | Yes | |||
| Vietnam | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Taiwan, China | North Section of the Hsueshan Mt. Range |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Forest | Temperate | suitable | resident |
| Altitude | 750 - 2500 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2020) Species factsheet: Strix leptogrammica. Downloaded from
http://www.birdlife.org on 31/10/2020.
Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 31/10/2020.
