Spotted Grasshopper-warbler (Locustella thoracica) | Details

Spotted Grasshopper-warbler Locustella thoracica

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Locustella thoracica and L. kashmirensis (del Hoyo and Collar 2016) were previously lumped as Bradypterus thoracicus following Round and Loskot (1995).

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
2016	Least Concern
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

Migratory status	full migrant	Forest dependency	low
Land-mass type		Average mass	-

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	398,000 km²
Extent of Occurrence (non-breeding)	284,000 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	stable	-	suspected	-
Generation length	3.5 years	-	-	-

Population justification: The global population size has not been quantified.

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Country/territory distribution

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

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Temperate	suitable	breeding
Forest	Temperate	suitable	non-breeding
Grassland	Temperate	suitable	breeding
Grassland	Temperate	suitable	non-breeding
Shrubland	Temperate	major	breeding
Shrubland	Temperate	major	non-breeding
Wetlands (inland)	Bogs, Marshes, Swamps, Fens, Peatlands	suitable	non-breeding
Altitude		Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Spotted Grasshopper-warbler Locustella thoracica. Downloaded from https://datazone.birdlife.org/species/factsheet/spotted-grasshopper-warbler-locustella-thoracica on 28/12/2024.
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 28/12/2024.