LC
River Warbler Locustella fluviatilis



Taxonomy

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _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 Low
Land mass type Average mass 16 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 7,580,000
Extent of Occurrence non-breeding (km2) 1,570,000
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 5000000-13999999 poor estimated 2012
Population trend Decreasing estimated -
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 - - -
Largest subpopulations - - -
Generation length (yrs) 3.7 - - -

Population justification: In Europe, the breeding population is estimated to number 2,330,000-5,360,000 pairs, which equates to 4,650,000-10,700,000 mature individuals (BirdLife International 2015). Europe forms c.80% of the global range, so a very preliminary estimate of the global population size is 5,800,000-13,400,000 mature individuals, although further validation of this estimate is needed.

Trend justification: In Europe the overall trend from 1982-2013 was decreasing (EBCC 2015).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Algeria N Extant
Austria N Extant Yes
Azerbaijan N Extant
Bahrain V Extant Yes
Belarus N Extant Yes
Belgium V Extant
Bosnia and Herzegovina N Extant Yes
Botswana V Extant
Bulgaria N Extant Yes
Croatia N Extant Yes
Cyprus V Extant
Czechia N Extant Yes
Denmark N Extant Yes Yes
Egypt N Extant
Estonia N Extant Yes
Ethiopia N Extant
Finland N Extant Yes
France V Extant
Germany N Extant Yes
Greece N Extant Yes
Hungary N Extant Yes
Iran, Islamic Republic of N Extant Yes
Iraq N Extant Yes
Israel N Extant
Jordan N Extant Yes
Kazakhstan N Extant Yes
Kenya N Extant
Kuwait N Extant Yes
Latvia N Extant Yes
Lebanon V Extant Yes
Libya N Extant
Lithuania N Extant Yes
Malawi N Extant
Malta V Extant
Moldova N Extant Yes
Montenegro N Extant Yes
Morocco N Extant
Mozambique V Extant
Namibia V Extant
Netherlands V Extant
Norway V Extant
Oman V Extant Yes
Poland N Extant Yes
Portugal V Extant
Romania N Extant Yes
Russia N Extant Yes
Russia (Central Asian) N Extant Yes
Russia (European) N Extant Yes
Saudi Arabia N Extant Yes
Serbia N Extant Yes
Slovakia N Extant Yes
Slovenia N Extant Yes
Somalia V Extant
South Africa N Extant
Spain V Extant
Sudan N Extant Yes
Svalbard and Jan Mayen Islands (to Norway) V Extant
Sweden N Extant Yes
Switzerland V Extant
Syria N Extant Yes
Tanzania N Extant
Tunisia N Extant
Turkey N Extant
Uganda V Extant
Ukraine N Extant Yes
United Arab Emirates V Extant Yes
United Kingdom V Extant
Yemen V Extant Yes
Zambia N Extant
Zimbabwe N Extant

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Belarus Balota Zvaniec
Belarus Mid Prypiac'
Belarus Lower Pripyat
Belarus Biarezinski zapaviednik
Belarus Al'manskija baloty
Estonia Koiva-Mustjõe
Latvia Uzava lowland
Romania Cârja - Maţa - Rădeanu - Roşcani
Romania Stânca lake - Costeşti
Slovenia River Drava
Slovenia River Mura
Slovenia Krakovo forest and Šentjernej plain
Sweden Lake Kvismaren
Sweden River Helge
Sweden Dannemora
Poland Malopolska Wisla river gap
Poland Gródek-Michalowo basin
Poland Delta of the Swina river
Poland Woniesc reservoir
Poland Vistula river mouth
Poland Marshy Valley of the Narew River
Poland Middle Bug river valley
Poland Nida Rivar Valley
Poland Parczew forests
Poland Swidwie lake
Poland Marshy valley of the Drweca river
Poland Notec river flood-plain
Poland Biala Forest
Poland Odra riverine forests
Poland Strzeleckie forests
Poland Narew river gaps
Poland Nietlice marshes
Greece Dionysades islets, Crete
Greece Mount Lepetymnos, Lesvos, and surrounding marine area
Greece Kalloni Gulf, Lesvos
Greece Nestos delta and coastal lagoons
Finland Köyliönjärvi and Pyhäjärvi lakes
Finland Pori archipelago and wetlands
Finland Hanko western archipelago
Finland Laajalahti bay, Vanhankaupunginlahti bay and Viikki
Finland Porvoonjoki Delta
Finland Teutjärvi and Suvijärvi lakes
Finland Kirkon-Vilkkiläntura Bay
Finland Torronsuo and Lake Talpianjärvi
Finland Keski-Kallavesi and Kuhanen Lake
Finland Värtsilä valley
Finland Lapväärti wetlands
Hungary Upper Tisza
Hungary Aggtelek Karst
Russia (European) Buzulukski forest
Ukraine Sul's'ka bay
Ukraine Dniprovs'ko-Oril's'kyj Nature Reserve
Ukraine Stokhod river valley
Ukraine Korotchenkivs'ki meadows
Ukraine Lyman lake
Ukraine Samars'kyj forest
Ukraine Pryp'yat' river valley
Ukraine Chonovyny marsh
Czechia Poodri
Czechia Krivoklatsko (Krivoklatsko region)
Serbia Obedska bara
Slovakia Slovenský karst
Slovakia Horna Orava
Slovakia Senné
Slovakia Parízske marshes
Slovakia Morava
Slovakia River Danube flood-plain
Slovakia Tríbec
Slovakia Poiplie
Slovakia Polana
Slovakia Lest
Slovakia Nízke Tatry
Slovakia Spisská Magura
Slovakia Volovské hills
Slovakia Muránska plateau and Stolicke hills
Austria Austrian part of Hanság
Austria Surroundings of Mattersburg
Austria Lobau
Austria March/Thaya riverine forest
Austria Riverine forests on the Danube east of Vienna
Austria Vienna forest
Austria Riverine forests in the Tullnerfeld
Austria Allentsteig military training area
Austria Middle Kamp valley
Austria Fish-ponds in the Waldviertel
Austria Machland
Austria Lower course of the Traun
Austria Salzach valley
Austria Storage lakes on the lower Inn
Austria Styrian Joglland
Slovakia Bukovské hills
Germany Peenetal (Peenetalmoor and Anklamer Stadtbruch)
Germany Ponds and Elbe valley near Torgau
Germany Main valley: Eltmann - Hassfurt
Germany Main valley near Schweinfurt
Germany Main valley near Volkach: Fahr-Dettelbach
Germany Rötelsee-Weihergebiet incl. Regenaue and Chambaue
Germany Donau-Auen and Donau-Ried: Höchstädt - Donauwörth
Germany Danube valley: Regensburg-Vilshofen
Germany Lowlands of middle Havel
Germany Isar valley: Gottfrieding - Plattling incl. Isar mouth
Germany Wagbach lowlands
Germany Lech-Donau-Winkel: Lechstausee Feldheim and Donaustausee Bertoldsheim
Germany Eder alluvion
Germany Rhäden near Obersuhl and Bosserode
Ukraine Mzha river valley
Russia (European) Kilemarski Reserve
Austria Feuchte Ebene and Rauchwarther Platte
Austria Western Waldviertel
Austria Lösslandschaft and Wagram east of Krems
Austria Western Weinviertel
Austria Southern Waldviertel
Austria Freiwald
Austria Meadows and lakes in the foreland of the Alps in Salzburg and Upper Austria
Austria Styrian Enns valley
Finland Maaninka wetlands
Finland Kirkkojärvi lake and Lupinlahti bay
Finland Tammisaari and Inkoo western archipelago
Finland Koskeljärvi, Vaaljärvi and Pitkäjärvi lakes
Netherlands Lake IJsselmeer
Germany Drömling (Niedersachsen)
Germany Oker valley near Vienenburg
Germany Lakes of Schwerin, Dambeck and Warin
Germany Island of Usedom
Germany Schaalsee
Germany Stepenitz-Maurine-Radegast
Germany Mecklenburgische Schweiz
Germany Recknitz and Trebel valley
Germany Woodlands of Western Pomerania, eastern range
Germany Main valley and Steiger foothills near Schweinfurt and Volkach
Germany Eder alluvion
Germany Selenter See
Germany Selent-Plön fishponds
Germany Oldenburger Graben and Wesseker See
Germany Grosser Plöner See
Germany Forests of Lauenburg
Germany Lauenburgische Seen Nature Park and Schaalsee area
Germany Kühren Teich and Lanker See
Germany Heidmoor lowlands
Poland Tuchola Forest
Poland Skaliskie Forest
Poland Wizna Swamps
Poland Omulew and Plodownica Rivers Valleys
Poland Upper Nurzec River Valley
Poland Middle Notec River Valley
Poland Zgierzynieckie Lake
Poland Middle Odra River Valley
Poland Kampinos forest
Poland Mietkow reservoir
Poland Polesie
Poland Brzeszcze ponds
Poland Lower Sola River Valley
Poland Lower Skawa River Valley
Poland Beskid Zywiecki Mountains
Poland Pulwy Marshes
Poland Lower San River Valley
Poland Widawa and Olesnica River Valley
Poland Jaktorow and Krasnicza Wola Fishponds
Poland Sudety Wałbrzysko-Kamiennogorskie Mountains
Kazakhstan Ural River Valley
Sweden Lake Ralången – Lake Hyllingen
Sweden Bay of Rynninge

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Temperate suitable breeding
Grassland Subtropical/Tropical Seasonally Wet/Flooded suitable non-breeding
Grassland Temperate suitable breeding
Savanna Dry suitable non-breeding
Shrubland Subtropical/Tropical Moist suitable non-breeding
Shrubland Temperate suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2020) Species factsheet: Locustella fluviatilis. Downloaded from http://www.birdlife.org on 19/09/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 19/09/2020.