Common Grasshopper-warbler Locustella naevia


Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.
Cramp, S. and Simmons, K.E.L. (eds). 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
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
2014 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 does not normally occur in forest
Land mass type Average mass -

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 16,000,000 medium
Extent of Occurrence non-breeding (km2) 22,500,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 3000000-5999999 poor estimated 2012
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 - - -

Population justification: In Europe, the breeding population is estimated to number 916,000-1,620,000 pairs, which equates to 1,830,000-3,240,000 mature individuals (BirdLife International 2015). Europe forms c.60% of the global range, so a very preliminary estimate of the global population size is 3,050,000-5,400,000 mature individuals, although further validation of this estimate is needed.

Trend justification: In Europe the overall trend from 1980-2013 was stable (EBCC 2015).

Country/territory distribution
Country/Territory Presence Origin Resident Breeding Non-breeding Passage
Afghanistan extant native yes
Algeria extant native
Armenia extant native yes
Austria extant native yes
Azerbaijan extant native yes
Bahrain extant vagrant yes
Belarus extant native yes
Belgium extant native yes
Bosnia and Herzegovina extant native yes
Bulgaria extant native yes
Cape Verde extant vagrant
China (mainland) extant native yes
Croatia extant native yes
Czechia extant native yes
Denmark extant native yes yes
Egypt extant native
Estonia extant native yes
Ethiopia extant vagrant
Finland extant native yes
France extant native yes yes
Gambia extant native
Georgia extant native yes
Germany extant native yes
Ghana extant vagrant
Gibraltar (to UK) extant native
Greece extant native yes
Guinea extant native
Hungary extant native yes
Iceland extant vagrant
Iran, Islamic Republic of extant native yes yes
Iraq extant native yes
Ireland extant native yes
Israel extant vagrant
Italy extant native yes
Jordan extant vagrant
Kazakhstan extant native yes
Kenya extant vagrant
Kuwait extant native yes
Kyrgyzstan extant native yes
Latvia extant native yes
Lebanon extant vagrant yes
Liberia extant vagrant
Libya extant native
Liechtenstein extant native yes
Lithuania extant native yes
Luxembourg extant native yes
Mali extant native
Malta extant vagrant
Mauritania extant native
Moldova extant native yes
Mongolia extant native yes
Montenegro extant native yes
Morocco extant native
Nepal extant vagrant
Netherlands extant native yes
North Macedonia extant native
Norway extant native yes
Oman extant native yes
Poland extant native yes
Portugal extant native
Qatar extant vagrant
Romania extant native yes
Russia extant native yes
Russia (Asian) extant native yes
Russia (Central Asian) extant native yes
Russia (European) extant native yes
Saudi Arabia extant native yes
Senegal extant native
Serbia extant native yes
Sierra Leone extant vagrant
Slovakia extant native yes
Slovenia extant native yes
Spain extant native yes
Sri Lanka extant vagrant yes
Sudan extant native yes
Sweden extant native yes
Switzerland extant native yes
Syria extant native yes
Tajikistan extant native
Tunisia extant native
Turkey extant native yes
Turkmenistan extant native yes
Ukraine extant native yes
United Arab Emirates extant native yes
United Kingdom extant native yes
Uzbekistan extant native
Western Sahara extant native
Yemen extant vagrant yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Belarus Balota Dzikoje
Belarus Balota Zvaniec
Czechia Krivoklatsko (Krivoklatsko region)
Netherlands Rijntakken
Sweden Lake Hornborga
Sweden Lake Kvismaren
Sweden Lake Östen
Sweden River Dal – Håvran

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable non-breeding
Artificial/Terrestrial Pastureland suitable breeding
Grassland Subtropical/Tropical Dry suitable non-breeding
Grassland Temperate suitable breeding
Shrubland Subtropical/Tropical Dry suitable non-breeding
Shrubland Temperate suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable non-breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) suitable non-breeding
Altitude   Occasional altitudinal limits (max) 1800 m

Recommended citation
BirdLife International (2023) Species factsheet: Locustella naevia. Downloaded from on 31/05/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 31/05/2023.