Data Zone
Taxonomic note
Stachyris humei (del Hoyo and Collar 2016) was previously listed as Sphenocichla humei.
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 |
|---|---|---|
| 2018 | Near Threatened | C1+2a(i) |
| 2016 | Near Threatened | C1+2a(i) |
| 2013 | Near Threatened | C1+2a(i) |
| 2012 | Near Threatened | C1+2a(i) |
| 2008 | Near Threatened | C1; C2a(i) |
| 2004 | Not Recognised | |
| 2000 | Not Recognised | |
| 1994 | Not Recognised | |
| 1988 | Not Recognised |
| Migratory status | not a migrant | Forest dependency | high |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 165,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 2500-9999 mature individuals | poor | suspected | 2007 |
| Population trend | decreasing | poor | suspected | 2010-2023 |
| Rate of change over the past 10 years/3 generations (longer of the two periods) | 1-19% | - | - | - |
| Rate of change over the future 10 years/3 generations (longer of the two periods) | 1-19% | - | - | - |
| Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 1-19% | - | - | - |
| Generation length | 4.4 years | - | - | - |
Population justification: The population is preliminarily suspected to number fewer than 10,000 mature individuals, although this requires study.
Trend justification: The species is suspected to be declining at a slow to moderate rate, owing to logging and habitat degradation due to shifting agriculture.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Bhutan | extant | native | yes | |||
| India | extant | native | yes | |||
| Nepal | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| India | Eaglenest Wildlife Sanctuary |
| India | Kamlang Wildlife Sanctuary and Reserve Forest |
| India | Koloriang - Sarli - Damin area |
| India | Lowland forests of South Sikkim (Melli-Baguwa-Kitam, Jorethang-Namchi, Sombarey) |
| India | Maenam Wildlife Sanctuary - Tendong Reserve Forest |
| India | Mouling National Park |
| India | Nacho - Limeking - Taksing - Majha |
| India | Namdapha National Park |
| India | Zemithang - Nelya |
| Nepal | Dharan forests |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | major | resident |
| Altitude | 900 - 1950 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%) | Rapid 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 | ||||||
|
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Recommended citation
BirdLife International (2024) Species factsheet: Blackish-breasted Babbler Stachyris humei. Downloaded from
https://datazone.birdlife.org/species/factsheet/blackish-breasted-babbler-stachyris-humei on 22/11/2024.
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 22/11/2024.