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.; Eve, R. 1999. New species of Barwing Actinodura (Passeriformes: Sylviinae: Timaliini) from the Western Highlands of Vietnam. Ibis 141: 1-10.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
2020 | Near Threatened | B1a |
2016 | Near Threatened | B1ab(ii,iii,v); C2a(i) |
2013 | Near Threatened | B1ab(ii,iii,v); C2a(i) |
2012 | Vulnerable | B1ab(i,ii,iii,iv,v) |
2008 | Vulnerable | B1a+b(i,ii,iii,iv,v) |
2004 | Vulnerable | |
2000 | Vulnerable | |
1994 | Not Recognised | |
1988 | Not Recognised |
Migratory status | not a migrant | Forest dependency | Medium |
Land mass type |
Land-mass type - continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 17,400 | medium |
Number of locations | 10 | - |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | 6600-13400 | poor | estimated | 2013 |
Population trend | Stable | 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) | - | - | - | |
Decline (10 years/3 generation past and future) | - | - | - | |
Number of subpopulations | 2-100 | - | - | - |
Percentage in largest subpopulation | - | - | - |
Population justification: The population was previously estimated to number 2,500-9,999 individuals, based on an assessment of known records, descriptions of abundance and range size. However, the species has since been found at additional locations, extending its known range and suggesting that the population estimate should be revised upwards. As a result the population is now placed in the band for 10,000-19,999 individuals, roughly equivalent to 6,600-13,400 mature individuals.
Trend justification: The population status of this species is very poorly known. It is suspected to be stable on the basis that it favours secondary habitats and that human activities are resulting in both the creation and destruction of such habitats, and thus an on-going turn-over in suitable areas with, however, no discernible net change in recent years (R. J. Timmins in litt. 2013). The area of suitable habitat in Laos may in fact be increasing, at least temporarily (S. Mahood in litt. 2012, J. W. Duckworth in litt. 2013), but further investigation is needed.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Laos | N | Extant | Yes | |||
Vietnam | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Vietnam | Ngoc Linh |
Vietnam | Lo Xo Pass |
Laos | Dakchung Plateau |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Plantations | suitable | resident |
Forest | Subtropical/Tropical Moist Montane | major | resident |
Grassland | Subtropical/Tropical High Altitude | suitable | resident |
Shrubland | Subtropical/Tropical High Altitude | major | resident |
Altitude | 1000 - 2400 m | Occasional altitudinal limits | (min) 0 m |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Shifting agriculture | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Transportation & service corridors | Roads & railroads | Timing | Scope | Severity | Impact | ||||
Future | Majority (50-90%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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: Actinodura sodangorum. Downloaded from
http://www.birdlife.org on 31/03/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 31/03/2023.