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

Taxonomic note
The subspecies neilgherriensis has been moved from Z. aurea into Z. dauma, following song analysis that showed it to belong with the latter species (Weir 2018).

Previously, Zoothera dauma (Sibley and Monroe [1990, 1993]) and Z. imbricata (Collar [2004]) were lumped together into Z. dauma and subsequently split into Z. dauma, Z. major and Z. aurea following del Hoyo and Collar (2016).

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.
Handbook of the Birds of the World and BirdLife International. 2019. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 4. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v4_Dec19.zip.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2019	Least Concern

Migratory status	full migrant	Forest dependency	medium
Land-mass type		Average mass	104 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	8,210,000 km2	medium
Extent of Occurrence (non-breeding)	7,680,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	3 years	-	-	-

Population justification: The global population size has not been quantified. The species is variously described as uncommon to fairly common across much of its range (Clement and Hathway 2000).

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

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Bangladesh	extant	native
Bhutan	extant	native
Cambodia	extant	native
China (mainland)	extant	native
India	extant	native		yes	yes
Laos	extant	native
Malaysia	extant	vagrant
Myanmar	extant	native
Pakistan	extant	native		yes
Philippines	extant	native
Taiwan, China	extant	native
Thailand	extant	native
Vietnam	extant	native

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	non-breeding
Artificial/Terrestrial	Rural Gardens	suitable	non-breeding
Forest	Boreal	major	breeding
Forest	Subtropical/Tropical Moist Lowland	suitable	breeding
Forest	Subtropical/Tropical Moist Lowland	suitable	non-breeding
Forest	Subtropical/Tropical Moist Montane	suitable	breeding
Forest	Subtropical/Tropical Moist Montane	suitable	non-breeding
Forest	Temperate	suitable	breeding
Shrubland	Boreal	suitable	breeding
Altitude	2400 - 3600 m	Occasional altitudinal limits	(min) 0 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
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, Ecosystem conversion

Purpose	Primary form used	Life stage used	Source	Scale	Level	Timing
Food - human	-	-			non-trivial	recent
Pets/display animals, horticulture	-	-			non-trivial	recent

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Recommended citation
BirdLife International (2024) Species factsheet: Zoothera dauma. Downloaded from https://datazone.birdlife.org/species/factsheet/scaly-thrush-zoothera-dauma on 14/05/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org on 14/05/2024.