NT
Blackish-breasted Babbler Stachyris humei



Taxonomy

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.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
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
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 165,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor suspected 2007
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) 1-19 - - -
Decline (10 years/3 generation past and future) 1-19 - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 4.4 - - -

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 distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Bhutan N Extant Yes
India N Extant Yes
Nepal N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
India Koloriang - Sarli - Damin area
India Mouling National Park
India Nacho - Limeking - Taksing - Majha
India Zemithang - Nelya
India Lowland forests of South Sikkim (Melli-Baguwa-Kitam, Jorethang-Namchi, Sombarey)
India Maenam Wildlife Sanctuary - Tendong Reserve Forest
Nepal Dharan forests
India Eaglenest Wildlife Sanctuary
India Kamlang Wildlife Sanctuary and Reserve Forest
India Namdapha National Park

Habitats & altitude
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  

Threats & impact
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
Stresses
Ecosystem conversion
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
Stresses
Ecosystem degradation

Recommended citation
BirdLife International (2020) Species factsheet: Stachyris humei. Downloaded from http://www.birdlife.org on 04/07/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 04/07/2020.