LC
Gray's Grasshopper-warbler Locustella fasciolata



Taxonomy

Taxonomic note
Locustella fasciolata and L. amnicola (del Hoyo and Collar 2016) were previously lumped as L. fasciolata following AERC TAC (2003), Cramp et al. (1977-1994) and Sibley and Monroe (1990, 1993).

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
Species attributes

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 4,550,000
Extent of Occurrence non-breeding (km2) 3,930,000
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) 3.7 - - -

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
Indonesia N Extant Yes
Mongolia N Extant Yes
Papua New Guinea N Extant Yes
Philippines N Extant Yes
Russia N Extant Yes
Russia (Asian) N Extant Yes
Russia (Central Asian) N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Russia (Central Asian) Yel'tsovskaya
Russia (Central Asian) Kuznetsky Alatau Zapovednik
Russia (Asian) Sayanski canyon of the Enisey river

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable non-breeding
Forest Temperate suitable breeding
Grassland Temperate suitable breeding
Shrubland Subtropical/Tropical Moist suitable non-breeding
Shrubland Temperate suitable breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2021) Species factsheet: Locustella fasciolata. Downloaded from http://www.birdlife.org on 05/12/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 05/12/2021.