Hazel Grouse Bonasa bonasia


Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: # _the_WP15.xls#.
Cramp, S. and Perrins, C.M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
Cramp, S.; Perrins, C. M. 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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.

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 not a migrant Forest dependency High
Land mass type Average mass 429 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 30,700,000
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 9000000-19999999 poor estimated 2012
Population trend Decreasing 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 - - -
Largest subpopulations - - -
Generation length (yrs) 4.4 - - -

Population justification: In Europe, the breeding population is estimated to number c.1,480,000-2,920,000 pairs, which equates to 2,950,000-5,830,000 mature individuals (BirdLife International 2015). Europe forms approximately 30% of the global range, so a very preliminary estimate of the global population size is c. 9,800,000-19,400,000 mature individuals although further validation of this estimate is needed. The population is therefore placed in the band 9,000,000-19,999,999 mature individuals. In addition, national population estimates include: c.10,000-100,000 breeding pairs in China; c.100-10,000 breeding pairs in Korea; c.100-10,000 breeding pairs in Japan and c.100,000-1 million breeding pairs in Russia (Brazil 2009).

Trend justification: The population is suspected to be declining owing to habitat destruction (del Hoyo et al. 1994). Local extinctions have been recorded in parts of China and Mongolia as a result of forest loss (Madge and McGowan 2002). Within the species's European range the population is estimated to be stable (BirdLife International 2015, EBCC 2015).

Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Albania N Extant Yes
Austria N Extant Yes
Belarus N Extant Yes
Belgium N Extant Yes
Bosnia and Herzegovina N Extant Yes
Bulgaria N Extant Yes
China (mainland) N Extant Yes
Croatia N Extant Yes
Czechia N Extant Yes
Estonia N Extant Yes
Finland N Extant Yes
France N Extant Yes
Germany N Extant Yes
Greece N Extant Yes
Hungary N Extant Yes
Italy N Extant Yes
Japan N Extant Yes
Kazakhstan N Extant Yes
Latvia N Extant Yes
Liechtenstein N Extant Yes
Lithuania N Extant Yes
Luxembourg N Extant Yes
Mongolia N Extant Yes
Montenegro N Extant Yes
North Korea N Extant Yes
North Macedonia N Extant Yes
Norway N Extant Yes
Poland N Extant Yes
Romania N Extant Yes
Russia N Extant Yes
Russia (Asian) N Extant Yes
Russia (Central Asian) N Extant Yes
Russia (European) N Extant Yes
Serbia N Extant Yes
Slovakia N Extant Yes
Slovenia N Extant Yes
South Korea N Extant Yes
Spain N Extant Yes
Sweden N Extant Yes
Switzerland N Extant Yes
Ukraine N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Austria Freiwald
Austria Northern Kalkalpen
Austria Ötscher-Dürrenstein
Belgium Deux Ourthes
Belgium Haute Sûre/Ardenne méridionale
Belgium Lesse et Lomme
Belgium Sinémurienne
Belgium Tailles
Bulgaria Central Balkan
Bulgaria Dobrostan
Bulgaria Kotlenska Mountain
Bulgaria Pirin
Bulgaria Rila
Bulgaria Sredna Gora
Bulgaria Trigrad-Mursalitsa
Bulgaria Western Rhodopes
Croatia Gorski Kotar and Northern Lika
Croatia Mount Velebit
Croatia Plitvice Lakes National Park
Czechia Beskydy mountains
Czechia Boletice
Czechia Jeseniky mountains
Czechia Novohradské hory mountains
Czechia Sumava mountains (Bohemian forest)
Estonia Alam-Pedja
Estonia Lahemaa
France Barois et Forêt de Clairvaux
France Bassin du Drugeon: Pontarlier-Frasne
France Bois du Chapitre
France Forêt d'altitude du Jura : forêt du Risoux
France Forêts d'altitude du Jura : forêt du Massacre
France Forêts d'altitude du Jura : forêt du Risol et Mont d'Or
France Haut Giffre
France Haute chaîne du Jura: défilé de l'écluse, Etournel et Mont Vuache
France Les Bauges
France Massif des Vosges : crêtes de Schneeberg au Donon
France Massif des Vosges: Hautes Vosges
France Montagne des Frêtes et plateau des Glières
France Parc National de la Vanoise
France Parc National des Ecrins
France Plateau Ardennais
Germany Ahrgebirge
Germany Ammergau mountains
Germany Bayerischer Wald National Park with Arber region and Hohem Bogen
Germany Burgwald
Germany Central Black Forest
Germany Eastern Chiemgau Alps
Germany Egge
Germany Hauberge near Haiger
Germany High alps of Allgäu
Germany Karwendel and Karwendel foothills
Germany Lahn slopes
Germany Middle and Lower Mosel
Germany Middle Rhine valley
Germany Mittelsiegbergland
Germany Northern Black Forest
Germany South-eastern Alb and Upper Danube valley
Germany Southern Black Forest
Germany Southern Harz near Zorge
Germany Stromberg
Hungary Aggtelek Karst
Hungary Karancs–Medves
Hungary Mátra
Hungary Putnok Hills
Italy Adamello-Brenta
Italy Carniche pre-Alps
Italy Lagorai mountains
Italy Mount Grappa
Italy Stelvio National Park
Italy Tarvisio forest and Giulie pre-alps
Italy Val d'Ossola
Kazakhstan Markakol State Nature Reserve
Kazakhstan Paradise Valley mountain plateau
Lithuania Birzai forest
Lithuania Buda - Pravieniskes forest complex
Lithuania Zemaitija National Park
Luxembourg Region Kiischpelt
Luxembourg Upper Valley of the Our
Luxembourg Upper Valley of the Sure
Poland Augustów forest
Poland Beskid Niski Mountains
Poland Bialowieza Forest
Poland Bieszczady Mountains
Poland Knyszyn Forest
Poland Przemysl Plateau
Poland Slonne Mountains
Poland Tatra mountains
Romania Defileul Superior al Mureşului
Romania Frumoasa
Romania Giurgeu Depression
Romania Grădiştea Muncelului
Romania Igniş Mountains - Creasta Cocoşului
Romania Padiş - Vlădeasa mountain
Romania Retezat Mountains
Romania Rodnei Mountains
Romania Vânători - Neamţ
Romania Vrancea Mountains
Russia (Central Asian) Baturino-Simansky area
Russia (Central Asian) Bol'shaya Indra lake
Russia (Central Asian) Bol'shoy and Maly Akh lakes
Russia (Central Asian) Dikoye and Epanchino lakes
Russia (Central Asian) East slope of the Northern Ural
Russia (Central Asian) East slope of the Northern Ural
Russia (Central Asian) Istochnoye, Sredneye and Schuch'ye lakes
Russia (Central Asian) Kondinskiye lakes
Russia (Central Asian) Korgonskaya
Russia (Central Asian) Kurkure mountain
Russia (Central Asian) Kuznetsky Alatau Zapovednik
Russia (Central Asian) Molebny Kamen' ridge
Russia (Central Asian) Pershinsko-Manatkinsky area
Russia (Central Asian) Poyasovy Kamen' ridge
Russia (Central Asian) Russkoye lake
Russia (Central Asian) Shapshal ridge
Russia (Central Asian) Tundyt mountain
Russia (Central Asian) Ust'-Ozerninskiye bogs
Russia (Central Asian) Vizhay river
Russia (Central Asian) Vodorazdel'naya
Russia (Central Asian) Watershed of the Mulym'ya and Bolshoy Tap rivers
Russia (Central Asian) Yel'tsovskaya
Russia (Central Asian) Zapovednik "Denezhkin Kamen'"
Slovakia Bukovské hills
Slovakia Laborecka upland
Slovakia Nízke Tatry
Slovakia Tatry
Slovakia Velká Fatra
Slovenia Grintovci
Slovenia Jelovica plateau
Slovenia Julijci
Slovenia Kočevsko
Slovenia Trnovski gozd
Sweden Färnebofjärden
Sweden Florarna
Sweden Hanveden – Hemfosa
Sweden Lake Persöfjärden
Sweden Sjöängen – Svartån

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Boreal major resident
Forest Temperate suitable resident
Altitude 160 - 1800 m Occasional altitudinal limits  

Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Non-trivial Recent
Pets Whole Adults and juveniles Wild International Non-trivial Recent
Sport Whole Adults and juveniles Wild Non-trivial Recent

Recommended citation
BirdLife International (2019) Species factsheet: Bonasa bonasia. Downloaded from on 18/11/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from on 18/11/2019.