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.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
2021 | Near Threatened | A2c+3c+4c |
2016 | Near Threatened | A2c+3c+4c |
2013 | Near Threatened | A2c+3c+4c |
2012 | Near Threatened | A2c+3c+4c |
2008 | Near Threatened | A2c; A3c; A4c |
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 | Medium |
Land mass type |
Land-mass type - continent Land-mass type - shelf island |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 2,920,000 | 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) | 15-25 | - | - | - |
Decline (10 years/3 generation past and future) | 15-25 | - | - | - |
Number of subpopulations | - | - | - | |
Percentage in largest subpopulation | - | - | - | |
Generation length (yrs) | 4.4 | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as generally uncommon to fairly common, although common in Borneo and extinct in Singapore (del Hoyo et al. 2007, Wells 2007, Eaton et al. 2021).
Trend justification: Despite the ability of this species to persist in degraded forest habitats, it is intolerant of oil palm plantations and there are indications that populations in fragmented secondary forest may be unable to persist long term. Remote-sensing data indicate rates of forest loss approximating 15% over three generations. Because of additional, unquantified fragmentation impacts, it is here tentatively suspected to be undergoing a decline of 15-25% in three generations (13.2 years).
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Brunei | N | Extant | Yes | |||
Indonesia | N | Extant | Yes | |||
Malaysia | N | Extant | Yes | |||
Singapore | N | Extinct | Yes | |||
Thailand | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Malaysia | Ulu Muda |
Malaysia | Bintang Range |
Malaysia | Pondok Tanjung Forest Reserve |
Malaysia | Selangor Heritage Park |
Malaysia | Endau-Rompin |
Malaysia | Krau Wildlife Reserve |
Malaysia | Taman Negara National Park |
Malaysia | South-east Pahang peat swamp forest |
Malaysia | Kinabatangan floodplain |
Malaysia | Maliau Basin Conservation Area |
Malaysia | Tabin Wildlife Reserve |
Malaysia | Kabili-Sepilok |
Malaysia | Tanjung Datu-Samunsam Protected Area |
Malaysia | Gunung Pueh |
Malaysia | Sadong-Saribas coast |
Malaysia | Lanjak Entimau Wildlife Sanctuary |
Malaysia | Danum-Linau |
Malaysia | Similajau National Park |
Malaysia | Niah National Park |
Malaysia | Lambir Hills National Park |
Malaysia | Mulu - Buda Protected Area |
Thailand | Bala Sector, Hala-Bala Wildlife Sanctuary |
Thailand | Hala Sector, Hala-Bala Wildlife Sanctuary and Bang Lang National Park |
Thailand | Khao Nor Chuchi |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Forest | Subtropical/Tropical Swamp | suitable | resident |
Altitude | 0 - 1400 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 | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
|||||||||
Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
|||||||||
Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
---|---|---|---|---|---|---|
Pets/display animals, horticulture | - | - | International | Non-trivial | Recent |
Recommended citation
BirdLife International (2022) Species factsheet: Stachyris nigricollis. Downloaded from
http://www.birdlife.org on 19/08/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 19/08/2022.