LC
Chinese Grasshopper-warbler Locustella tacsanowskia



Taxonomy

Taxonomic note
Locustella tacsanowskia (del Hoyo and Collar 2016) was previously listed as Bradypterus tacsanowskia.

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.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

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 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
Species attributes

Migratory status full migrant Forest dependency Low
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 7,070,000
Extent of Occurrence non-breeding (km2) 2,460,000
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Stable 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) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 3.5 - - -

Population justification: The global population size has not been quantified, but the species is reported to be locally common (Baker 1997), while national population sizes have been estimated at < c.100,000 breeding pairs and < c.1,000 individuals on migration in China and < c.100,000 breeding pairs and possibly < c.1,000 individuals on migration in Russia (Brazil 2009).

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 Occurrence status Presence Resident Breeding Non-breeding Passage
China (mainland) N Extant Yes
India N Extant
Laos N Extant
Mongolia N Extant Yes
Myanmar N Extant
Nepal N Extant Yes
Russia N Extant Yes
Russia (Asian) N Extant Yes
Thailand N Extant
Vietnam N Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Aquatic & Marine Artificial/Aquatic - Seasonally Flooded Agricultural Land suitable non-breeding
Artificial/Terrestrial Arable Land suitable non-breeding
Forest Temperate suitable breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded major non-breeding
Grassland Temperate major breeding
Altitude 2800 - 3600 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2022) Species factsheet: Locustella tacsanowskia. Downloaded from http://www.birdlife.org on 27/01/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 27/01/2022.