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

Taxonomic note

Trochalopteron squamatum (del Hoyo and Collar 2016) was previously listed as Garrulax squamatus.

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
2018	Least Concern
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	1,390,000 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	4.7 years	-	-	-

Population justification: The global population size has not been quantified, but the species is described as scarce and local in Nepal, frequently recorded in Bhutan, uncommon in the Himalayas, although more common in the north-eastern hills and rare in China (del Hoyo et al. 2007).

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and fragmentation.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Bhutan	extant	native	yes
China (mainland)	extant	native	yes
India	extant	native	yes
Myanmar	extant	native	yes
Nepal	extant	native	yes
Vietnam	extant	native	yes

Country/Territory	IBA Name
Nepal	Annapurna Conservation Area
Nepal	Mai Valley forests
Nepal	Makalu Barun National Park
Nepal	Phulchoki Mountain forests
Nepal	Shivapuri-Nagarjun National Park
Vietnam	Fan Si Pan
Vietnam	Van Ban

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Shrubland	Subtropical/Tropical High Altitude	suitable	resident
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	suitable	resident
Altitude		Occasional altitudinal limits	(min) 500 m

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Blue-winged Laughingthrush Trochalopteron squamatum. Downloaded from https://datazone.birdlife.org/species/factsheet/blue-winged-laughingthrush-trochalopteron-squamatum on 23/12/2024.
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 23/12/2024.