LC
Montagu's Harrier Circus pygargus



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. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions 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
2021 Least Concern
2016 Least Concern
2013 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 -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 18,000,000 km2
Extent of Occurrence (non-breeding) 45,900,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 300000-550000 mature individuals poor suspected 2021
Population trend decreasing - suspected -
Generation length 5.59 years - - -

Population justification: The European population is estimated at 69,700-110,000 breeding females, which equates to 139,000-219,000 mature individuals (BirdLife International In prep.). Europe forms approximately 41% of the global range, so a very preliminary estimate of the global population size is 339,000-534,000 mature individuals, although further validation of this estimate is needed. It is placed in the band 300,000 to 550,000 mature individuals.

Trend justification: The global population is suspected to be decreasing owing to agricultural intensification and destruction of nests by farm machinery, over-use of pesticides and improved locust control, and loss of small mammal and bird prey species due to changing agricultural practices (Ferguson-Lees and Christie 2001). The European breeding population is thought to be decreasing by more than 10% over three generations (BirdLife International In prep.). Very little information is available on Asian breeding populations. Roost counts of overwintering birds in India during 1985-2015 found no significant decline of this species, despite overall declines in harrier numbers (Ganesh & Prashant 2018), however analysis of sightings of Montagu's Harrier in India logged on eBird suggested a moderate decline over the last 25 years (SoIB 2020).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Afghanistan extant native yes
Albania extant native yes
Algeria extant native yes yes
Andorra extant native yes
Armenia extant native yes yes
Austria extant native yes yes
Azerbaijan extant native yes yes
Bahrain extant vagrant yes
Bangladesh extant vagrant
Belarus extant native yes
Belgium extant native yes yes
Benin extant native yes
Bosnia and Herzegovina extant native yes yes
Botswana extant native yes
Bulgaria extant native yes yes
Burkina Faso extant native yes
Burundi extant native yes
Cameroon extant native yes
Cape Verde extant vagrant
Central African Republic extant native yes
Chad extant native yes
China (mainland) extant native yes yes
Congo extant vagrant
Congo, The Democratic Republic of the extant native yes
Côte d'Ivoire extant native yes
Croatia extant native yes yes
Cyprus extant native yes
Czechia extant native yes yes
Denmark extant native yes yes
Djibouti extant native yes
Egypt extant native yes
Eritrea extant native yes
Estonia extant native yes yes
Eswatini extant native yes
Ethiopia extant native yes yes
Finland extant native yes
France extant native yes yes
Gambia extant native yes
Georgia extant native yes yes
Germany extant native yes yes
Ghana extant native yes
Gibraltar (to UK) extant native yes
Greece extant native yes yes
Guinea extant native yes
Guinea-Bissau extant native yes
Hungary extant native yes yes
Iceland extant vagrant
India extant native yes
Iran, Islamic Republic of extant native yes yes
Iraq extant native yes
Ireland extant vagrant
Israel extant native yes
Italy extant native yes yes
Jordan extant native yes
Kazakhstan extant native yes yes
Kenya extant native yes
Kuwait extant native yes
Kyrgyzstan extant native yes
Latvia extant native yes yes
Lebanon extant native yes
Lesotho extant native yes
Liberia extant native yes
Libya extant native yes
Liechtenstein extant native yes
Lithuania extant native yes yes
Luxembourg extant native yes yes
Malawi extant native yes
Maldives extant native yes
Mali extant native yes yes
Malta extant native yes
Mauritania extant native yes yes
Moldova extant native yes yes
Montenegro extant native yes yes
Morocco extant native yes yes
Mozambique extant native yes
Namibia extant native yes
Nepal extant native yes
Netherlands extant native yes yes
Niger extant native yes
Nigeria extant native yes
North Macedonia extant native yes yes
Norway extant vagrant
Oman extant native yes yes
Pakistan extant native yes
Palestine extant native yes
Poland extant native yes yes
Portugal extant native yes yes
Qatar extant native yes
Romania extant native yes yes
Russia extant native yes yes
Russia (Central Asian) extant native yes
Russia (European) extant native yes yes
Rwanda extant native yes
Saudi Arabia extant native yes
Senegal extant native yes
Serbia extant native yes yes
Sierra Leone extant vagrant
Slovakia extant native yes yes
Slovenia extant native yes yes
Somalia extant native yes
South Africa extant native yes
South Sudan extant native yes
Spain extant native yes yes
Sri Lanka extant native yes
Sudan extant native yes yes
Sweden extant native yes
Switzerland extant native yes yes
Syria extant native yes
Tajikistan extant native yes
Tanzania extant native yes
Togo extant native yes
Tunisia extant native yes yes
Türkiye extant native yes yes
Turkmenistan extant native yes
Uganda extant native yes
Ukraine extant native yes yes
United Arab Emirates extant native yes yes
United Kingdom extant native yes
Uzbekistan extant native yes
Western Sahara extant native yes
Yemen extant native yes yes
Zambia extant native yes
Zimbabwe extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Austria Austrian part of Hanság
Austria Southern Seewinkel and Zitzmannsdorfer Wiesen
Belarus Al'manskija baloty
Belarus Balota Zvaniec
Belarus Kaz'jany
Belarus Mid Prypiac'
Belarus Polesie Reserve
Bosnia and Herzegovina Livno karst field and Busko lake
Bulgaria Adata-Tundzha
Bulgaria Derventski Heights
Bulgaria Ruy Mountain
Bulgaria Sakar
Bulgaria Straldzha Complex
Bulgaria Western Strandzha
Bulgaria Zlatiata
Croatia Cetina River
Croatia Lika Karst Fields
Croatia Lower Posavina
Croatia NW Dalmatia and Pag Island
Croatia Ravni Kotari
Estonia Alam-Pedja
Estonia Nätsi-Võlla
Estonia Soomaa
Estonia Suursoo-Leidissoo
Estonia Tuhu-Kesu
France Anse de Fouras, baie d'Yves et marais de Rochefort
France Baie de Bourgneuf et marais breton
France Baie des Veys et Marais du Cotentin
France Barois et Forêt de Clairvaux
France Basse Vallée du Doubs : Dole Sud
France Basses Corbières
France Bassigny
France Bazoncourt-Vigy
France Brenne: Forêt de la Petite-Brenne
France Crau
France Estuaire de la Gironde : marais du Blayais
France Estuaire de la Gironde : marais du Nord Médoc
France Forêt de Citeaux et environs
France Fresnes-en-Woëvre-Mars-la-Tour
France Gorges de la Dourbie et causses avoisinants
France Gorges de la Sioule
France Gorges du Gardon
France Haut Val d'Allier
France Hautes garrigues du Montpellierais
France Ile d'Oléron, marais de Brouage-Saint-Agnant
France Les Couzes Nord
France Marais poitevin et baie de l'Aiguillon
France Marais salants de Noirmoutier
France Minervois
France Parc National des Cévennes
France Petite Beauce
France Plaine calcaire du sud Vendée
France Plaine de Niort (nord-ouest)
France Plaine de Niort (sud-est)
France Plaine du Forez
France Plaines de Saint-Jouin de Marne et d'Assais-les-Jumeaux
France Plateau de Delme, Val de Petite Seille
France Plateau de Valensole
France Plateaux agricoles des environs de Frencq
France Plateaux de Millevaches et de Gentioux
France Sologne Bourbonnaise
France Val d'Allier Bourbonnais
France Val de Chiers et environs de Spincourt
France Val de Saône
France Vallée de la Conie et Beauce centrale
France Vallée de la Loire : gorges de la Loire
France Vallée de la Saône de Corre à Broye
France Zones agricoles de la Hardt
Germany Bliesgau
Germany Colblitz-Letzlinger Heide
Germany Donauried
Germany Drömling (Sachsen-Anhalt)
Germany Elbe lowlands Jerichow
Germany Elbe marshes between Stade and Otterndorf
Germany Emsaue (Rietberger Emsniederung - Steinhorster Becken)
Germany Esterweger Dose
Germany Farmlands Lich-Utphe
Germany Farmlands west and south of Plauer See
Germany Fiener Bruch
Germany Hamme lowlands
Germany Hellwegbörde
Germany Lower Gersprenz lowlands incl. Reinheim pond
Germany Lower Saxony Wadden Sea National Park
Germany Lowlands of the Rivers Eider, Treene and Sorge
Germany Luckauer Becken
Germany Niedervieland, Ochtumniederung
Germany Nordpfälzer Bergland and surroundings (Schalloden-bach to Bechenheim)
Germany Northern Danube valley and southern Riesalb
Germany Ochsenfurter Gau
Germany Peenetal (Peenetalmoor and Anklamer Stadtbruch)
Germany Ponds and Elbe valley near Torgau
Germany Putzarer See, Galenbecker See, Brohmer Berge
Germany Randow-Welse-Bruch / Uckermärkische Agrarlandschaft
Germany Recknitz and Trebel valley
Germany Rhine flats Sasbach - Wittenweier
Germany Stromberg
Germany Südradde lowlands
Germany Uckertal / Unteruckersee
Germany Ueckermünder Heide
Germany Unteres Rhinluch-Dreetzer See / Havelländisches Luch / Belziger Landschaftswiesen
Germany Vorderer Steigerwald - Windsheimer Bucht - Steigerwald-Vorland
Germany Wagbach lowlands
Germany Wetterau
Germany Wulfener Bruch and Teichgebiet Osternienburg
Germany Wümme lowlands Borgfeld-Fischerhude
Germany Zerbster Land
Hungary Alkaline pusztas of Upper Kiskunság
Hungary Bodrogzug–Taktaköz
Hungary Hanság
Hungary Hortobágy and Tisza-to
Hungary Szigetköz
Italy Albegna river valley
Italy Arezzo heathlands
Italy Bassa Parmense
Italy Campo d'Ozieri
Italy Colfiorito
Italy Crete Senesi
Italy Magredi of Pordenone
Italy Ortazzo and Ortazzino
Italy Po Delta
Italy River Po: from Ticino mouth to Boscone island
Italy Sinis and Oristano wetlands
Italy Valle Bertuzzi and Goro lagoon
Latvia Liepaja lake
Lithuania Agricultural land near the Kalvarija settlement
Lithuania Birzulius-Stervas marshes complex
Lithuania Exploited Sulinkiai peatbog
Lithuania Kamanos Strict Nature Reserve
Lithuania Nemunas delta regional Park
Lithuania Tyruliai State Nature Reserve
Lithuania Zuvintas Biosphere Reserve
Netherlands Harderbroek
Netherlands Lauwersmeer
Netherlands Oldambt
Netherlands Westerwolde
Poland Biebrza river valley
Poland Bzura River Valley
Poland Chelm calcareous marshes
Poland Lower Bug river valley
Poland Middle Bug river valley
Poland Upper Narew River Valley
Poland Upper Nurzec River Valley
Poland Warmia Site
Poland Wizna Swamps
Poland Wkra and Mlawka Rivers Valleys
Portugal Campo Maior
Portugal Castro Verde plains
Portugal Cuba
Portugal Estrela Mountains
Portugal Gerês mountains
Portugal Malcata mountains
Portugal Monforte plains
Portugal Montesinho and Nogueira mountains
Portugal Mourão, Moura e Barrancos
Portugal River Guadiana
Portugal Sabôr and Maçãs
Portugal Serra de Penha Garcia e Campina de Toulões
Portugal Serras do Alvão e Marão
Portugal Tejo estuary
Portugal Vila Fernando
Romania Aliman - Adamclisi
Romania Babadag wood
Romania Câmpia Crişurilor
Romania Câmpia Nirului - Valea lerului
Romania Cefa fish-ponds and Radvani wood
Romania Danube Delta
Romania Dobrogei gorge
Romania Hagieni forest
Romania Jijiei şi Miletinului fish-ponds
Romania Kogălniceanu - Gura Ialomiţei
Serbia Pašnjaci Velike Droplje
Serbia Pester
Serbia Presevo valley - Rujen
Serbia Uvac
Slovakia Medzibodrožie
Slovakia Pusté Úľany - Zeleneč
Spain Azuaga-Llerena-Peraleda de Zaucejo
Spain Bardenas Reales
Spain Bienvenida-Usagre-Ribera del Fresno
Spain Campiña de Jerez - Lebrija y Marisma de Trebujena
Spain Carrión-Frómista
Spain Cinca river rice fields and steppe area
Spain Condado-Campiña
Spain Córdoba countryside
Spain Gallocanta lake
Spain Jaén countryside
Spain La Limia
Spain La Serena
Spain Lerida steppes
Spain Montes Aquilanos range
Spain Oropesa plains
Spain Pela mountain range-Orellana reservoir-Zorita
Spain Plain between Cáceres and Trujillo-Aldea del Cano
Spain Prat de Cabanes-Torreblanca
Spain Quipar reservoir, Molino mountain range and Cagitán plains
Spain Talamanca-Camarma
Spain Tierra de Campiñas steppes
Spain Tierra de Campos steppes
Spain Torrejón de Velasco - Secanos de Valdemoro
Spain Trujillo-Torrecillas de la Tiesa
Spain Villafáfila
Türkiye Balıkdamı
Türkiye Bulanık and Malazgirt Plains
Türkiye Eşmekaya Marshes
Türkiye Tuz Lake
Türkiye Yüksekova
Ukraine Chonovyny marsh
Ukraine Forests in Dnipro and Desna valleys
Ukraine Pryp'yat' river valley
Ukraine Samars'kyj forest
Ukraine Shats'ki lakes
Ukraine Turiya river valley
United Kingdom The Wash

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable resident
Artificial/Terrestrial Plantations suitable breeding
Grassland Subtropical/Tropical Dry suitable non-breeding
Grassland Subtropical/Tropical High Altitude suitable non-breeding
Grassland Temperate suitable breeding
Shrubland Temperate suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable resident
Altitude 0 - 4000 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops - Shifting agriculture Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Species mortality
Biological resource use Hunting & trapping terrestrial animals - Persecution/control Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Species mortality
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Climate change & severe weather Droughts Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Species mortality
Energy production & mining Renewable energy Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species mortality
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Pollution Agricultural & forestry effluents - Herbicides and pesticides Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species mortality
Residential & commercial development Commercial & industrial areas Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Scale
Medicine - human & veterinary subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: Montagu's Harrier Circus pygargus. Downloaded from https://datazone.birdlife.org/species/factsheet/montagus-harrier-circus-pygargus on 26/12/2024.
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 26/12/2024.