Taxonomic note
Trochalopteron ngoclinhense (del Hoyo and Collar 2016) was previously listed as Garrulax ngoclinhensis.
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
Eames, J. C.; Le Trong Trai; Nguyen Cu. 1999. A new species of Laughingthrush (Passeriformes: Garrulacinae) from the Western Highlands of Vietnam. Bulletin of the British Ornithologists' Club 119: 4-15.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) | B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v); D2 |
Year | Category | Criteria |
---|---|---|
2018 | Endangered | B1ab(i,ii,iii,iv,v)+2ab(i,ii,iii,iv,v) |
2016 | Vulnerable | D2 |
2012 | Vulnerable | D2 |
2008 | Vulnerable | D2 |
2005 | Vulnerable | |
2004 | Vulnerable | |
2000 | Vulnerable | |
1994 | Not Recognised | |
1988 | Not Recognised |
Migratory status | not a migrant | Forest dependency | high |
Land-mass type |
continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 590 km2 | medium |
Area of Occupancy (breeding/resident) | 65 km2 | |
Number of locations | 2 | - |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 1000-2499 mature individuals | poor | suspected | 2000 |
Population trend | decreasing | poor | inferred | 2009-2023 |
Generation length | 4.7 years | - | - | - |
Population justification: Uncommon within a very small range, so placed in the band 1,000-2,499 mature individuals. This equates to 1,500-3,749 individuals in total, rounded here to 1,500-4,000 individuals. The estimate is provisional and requires confirmation.
Trend justification: Although the status of this species is very poorly known, it is thought that a slow decline may be occurring, owing to habitat degradation and trapping within its likely range (S. Mahood in litt. 2018).
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Vietnam | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Vietnam | Kon Plong |
Vietnam | Ngoc Linh |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Montane | major | resident |
Altitude | 1480 - 2200 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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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 | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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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 | ||||||
|
Recommended citation
BirdLife International (2024) Species factsheet: Golden-winged Laughingthrush Trochalopteron ngoclinhense. Downloaded from
https://datazone.birdlife.org/species/factsheet/golden-winged-laughingthrush-trochalopteron-ngoclinhense 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.