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. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2017 | Near Threatened | B2ab(ii,iii,v) |
| 2016 | Near Threatened | B1ab(ii,iii,v) |
| 2012 | Near Threatened | B1ab(ii,iii,v) |
| 2008 | Near Threatened | B1a+b(iii) |
| 2004 | Near Threatened | |
| 2000 | Lower Risk/Near Threatened | |
| 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) | 404,000 km2 | medium |
| Area of Occupancy (breeding/resident) | 1,484 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | - |
| Generation length | 5 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as common on Nansei-shoto. The total population on Lanyu is estimated to be 150-230 individuals (Konig et al. 1999), while other national population sizes have been estimated at c.100-100,000 breeding pairs in Taiwan and c.10,000-100,000 breeding pairs in Japan (Brazil 2009).
Trend justification: The population is suspected to be in slow decline owing to on-going but limited habitat loss and degradation.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Japan | extant | native | yes | |||
| Philippines | extant | native | yes | |||
| Taiwan, China | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Japan | Amami islands |
| Japan | Daito islands |
| Japan | Yambaru, northern Okinawa forest |
| Philippines | Batanes Islands |
| Taiwan, China | Lanyu |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 550 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Agro-industry farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Unknown | Unknown | ||||||
|
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| Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Residential & commercial development | Housing & urban areas | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
|||||||||
| Purpose | Scale |
|---|---|
| Pets/display animals, horticulture | international |
Recommended citation
BirdLife International (2024) Species factsheet: Ryukyu Scops-owl Otus elegans. Downloaded from
https://datazone.birdlife.org/species/factsheet/ryukyu-scops-owl-otus-elegans on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/12/2024.