• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2023	Near Threatened	B1b(iii)
2016	Vulnerable	B1ab(i,ii,iii,iv,v)
2012	Vulnerable	B1ab(i,ii,iii,iv,v)
2008	Vulnerable	B1a+b(i,ii,iii,iv,v)
2004	Vulnerable
2000	Vulnerable
1996	Vulnerable
1994	Vulnerable
1988	Threatened

Migratory status	not a migrant	Forest dependency	medium
Land-mass type	continent	Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	15,560 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	poor	-	-
Population trend	decreasing	poor	suspected	2016-2026
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Generation length	2.17 years	-	-	-
Number of subpopulations	2-20,2	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population size of this species has not been quantified, but citizen science data (eBird 2022) suggest it is regularly observed in the correct habitat, although this may be extremely localised. In India it is confined to Arunachal Pradesh where, historically, it was often thought to be rare (see BirdLife International 2001). However, in Namdapha National Park (nearly 2,000 km² in extent) it appears to be locally common, and it likely occurs too in adjacent forest areas, including Kamlang Wildlife Sanctuary (A. Choudhury and U. Srinivasan in litt. 2016). It has been observed only sporadically in northern Myanmar (e.g. Ming-Xia Zhang et al. 2017, eBird 2022), however this region is comparatively under-recorded and the area of suitable habitat is large. Away from the township of Putao, much of this habitat remains undegraded and likely supports a relatively large population. However, the ability to derive a population estimate is further confounded by this species' apparent reliance on a particular species of bamboo (Praveen J in litt. 2023), for which no accurate quantification of extent exists. In the absence of an accurate area with which to apply a proposed density, the population size is for now best considered unknown.

Trend justification: This species is precautionarily suspected to be declining, although the rate of this is assumed to be slow. Within its assumed range, remote sensing data indicate that 1-2% of forest was lost in the ten years to 2022 (Global Forest Watch 2022, based on data from Hansen et al. [2013] and methods disclosed therein). Most of this is attributable to the slow attrition of forest around the township of Putao, Myanmar, while populations in India have remained secure. As a forest-dependent species, this is nonetheless thought to have some impact, and the species is precautionarily suspected to have declined by 1-9% between 2012 and 2022. The future rate of decline is uncertain. However, while most of the range in India lies in habitat either remote or within a protected area (UNEP-WCMC and IUCN 2022), that in Myanmar remains vulnerable. The same rate of loss is therefore predicted into the future.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
India	extant	native	yes
Myanmar	extant	native	yes

Country/Territory	IBA Name
India	Chaglagaum - Denning
India	Dichu Reserve Forest
India	Gorumara National Park
India	Kamlang Wildlife Sanctuary and Reserve Forest
India	Namdapha National Park
India	Upper Dihing (East) Complex
India	Walong
Myanmar	Hponkanrazi

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Altitude	300 - 900 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
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, 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

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Recommended citation
BirdLife International (2024) Species factsheet: Snowy-throated Babbler Stachyris oglei. Downloaded from https://datazone.birdlife.org/species/factsheet/snowy-throated-babbler-stachyris-oglei 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.