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 |
---|---|---|
2016 | Near Threatened | C1 |
2012 | Near Threatened | C1 |
2008 | Near Threatened | C1 |
2004 | Near Threatened | |
2000 | Lower Risk/Near Threatened | |
1994 | Lower Risk/Near Threatened | |
1988 | Near Threatened |
Migratory status | nomadic | Forest dependency | High |
Land mass type |
Land-mass type - shelf island |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 292,000 | medium |
Number of locations | - | |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | unknown | not applicable | not applicable | 0 |
Population trend | Decreasing | poor | 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) | 10-19 | - | - | - |
Decline (10 years/3 generation past and future) | 10-19 | - | - | - |
Number of subpopulations | - | - | - | |
Percentage in largest subpopulation | - | - | - | |
Generation length (yrs) | 4.2 | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as locally common, although generally scarce on Sumatra and very rare on Java (Gibbs et al. 2001).
Trend justification: There are no data on population trends, but this species is suspected to be declining at a moderate rate, owing to habitat degradation.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Indonesia | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Indonesia | Bukit Barisan Selatan |
Indonesia | Kerinci Seblat |
Indonesia | Gunung Leuser |
Indonesia | Gunung Gede - Pangrango |
Indonesia | Gunung Masigit-Kareumbi |
Indonesia | Gunung Papandayan-Kamojang |
Indonesia | Gunung Tilu-Simpang |
Indonesia | Gunung Salak |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Forest | Subtropical/Tropical Moist Montane | major | resident |
Altitude | 350 - 3000 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%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Recommended citation
BirdLife International (2022) Species factsheet: Treron oxyurus. Downloaded from
http://www.birdlife.org on 23/05/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 23/05/2022.