LC
Rook Corvus frugilegus



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.
Turbott, E.G. 1990. Checklist of the Birds of New Zealand. Ornithological Society of New Zealand, Wellington.

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

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 37,600,000 medium
Extent of Occurrence non-breeding (km2) 35,400,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 54000000-94999999 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 - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 7.3 - - -

Population justification: In Europe, the breeding population is estimated to number 8,170,000-14,200,000 pairs, which equates to 16,300,000-28,400,000 mature individuals (BirdLife International 2015). Europe forms c.30% of the global range, so a very preliminary estimate of the global population size is 54,300,000-94,700,000 mature individuals, although further validation of this estimate is needed.

Trend justification: The population is suspected to be in decline following considerable decreases, especially in the east Asian populations (Madge and Burn 1993). In Europe, trends between 1980 and 2013 show that populations have undergone a moderate increase (EBCC 2015). However data collected for the European Red List of Birds shows that the European population has undergone a decline of less than 25% in 21.9 years (three generations) (BirdLife International 2015).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Afghanistan N Extant Yes
Albania N Extant
Algeria V Extant
Austria N Extant Yes
Azerbaijan 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
Cyprus N Extant
Czechia N Extant Yes
Denmark N Extant Yes
Egypt N Extant
Estonia N Extant Yes
Faroe Islands (to Denmark) N Extant Yes
Finland N Extant Yes Yes
France N Extant Yes
Germany N Extant Yes Yes
Greece N Extant Yes Yes
Greenland (to Denmark) V Extant
Hungary N Extant Yes
Iceland V Extant
Iran, Islamic Republic of N Extant Yes
Iraq N Extant Yes
Ireland N Extant Yes
Israel N Extant
Italy N Extant Yes
Japan N Extant
Jordan V Extant
Kazakhstan N Extant Yes
Kuwait V Extant Yes
Kyrgyzstan N Extant Yes
Latvia N Extant Yes
Lebanon V Extant Yes
Liechtenstein N Extant
Lithuania N Extant Yes
Luxembourg N Extant Yes
Malta V Extant
Moldova N Extant Yes
Mongolia N Extant Yes
Montenegro N Extant Yes
Netherlands N Extant Yes
New Zealand I Extant Yes
North Korea N Extant
North Macedonia N Extant Yes
Norway N Extant Yes
Poland N Extant Yes Yes
Portugal N Extant Yes
Romania N Extant Yes
Russia N Extant Yes 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
Spain N Extant Yes
Sweden N Extant Yes
Switzerland N Extant Yes
Syria N Extant Yes
Taiwan, China V Extant
Tajikistan N Extant
Turkey N Extant Yes
Turkmenistan N Extant Yes Yes
Ukraine N Extant Yes Yes
United Kingdom N Extant Yes
Uzbekistan N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Poland Pisz forest
Greece Axios, Loudias and Aliakmonas rivers' deltas
Greece Lakes Chortarolimni and Alyki, Moudros gulf, Diapori fen and Fakos peninsula, Limnos
Greece Lake Stymfalia
Greece Kato Olympos, Tempi gorge and mount Ossa
Greece Artzan reservoir
Greece Reservoirs of former lake Karla
Greece Mati wetland of Tyrnavos
Greece Mount Beles (Kerkini)
Greece Mount Krousia (Mavrovouni and Dysoro)
Greece Lake Kerkini
Greece Lake Ismarida (Mitrikou)
Greece Mount Pangaio
Greece Porto Lagos, lake Vistonida and coastal lagoons
Greece Nestos delta and coastal lagoons
Greece Nestos gorge
Greece Northern Evros and Ardas riparian forest
Greece National Park of Dadia - Lefkimi - Soufli forest
Greece South forest complex of Evros prefecture
Finland Hanko western archipelago
Finland Kirkon-Vilkkiläntura Bay
Finland Lålby fields
Ukraine Dniprovs'ko-Oril's'kyj Nature Reserve
Ukraine Velykomykhailivskyj forest
Ukraine Lyman lake
Italy Pian di Spagna and Lake Mezzola
Austria Steinfeld
Germany Ponds and Elbe valley near Torgau
Germany Main valley near Volkach: Fahr-Dettelbach
Germany Wagbach lowlands
Germany Borgfelder Wümmewiesen
Germany Blockland - lower Wümme valley - Westliches Hollerland
Germany Niedervieland, Ochtumniederung
Germany Mittelwesermarsch
Germany Elbe marshes between Stade and Otterndorf
Germany Wendesser moor
Germany Rheinaue Bingen-Ingelheim
Germany Rhine flats Nonnenweier - Kehl
Russia (Central Asian) Pesochnoe Lake
Russia (Central Asian) Karazjukski complex of marshes and lakes
Austria Parndorfer Platte and Heideboden
Ukraine Serednyotomakivske reservior
Finland Oulu region wetlands
Italy Magredi of Pordenone
Kazakhstan Karakol Lake
Kazakhstan Karasor Lake
Kazakhstan Ili River Delta
Kazakhstan Chardara Reservoir
Kazakhstan Sorbulak Lake System
Kazakhstan Kapchagay Canyon
Kazakhstan Ortau upland massif
Kazakhstan Ereymentau Mountains
Kazakhstan Saumalkol Lake
Kazakhstan Balyktykol Lake
Kazakhstan Chokpak Pass
Kazakhstan Tassuat Lake
Kazakhstan Ayak-Bestau Hills
Kazakhstan Lesser Aral Sea
Kazakhstan Syrdarya Delta Lakes
Kazakhstan Karagie Depression
Kazakhstan Lower reaches of the Emba River
Kazakhstan Shoshkakol Lakes

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable breeding
Artificial/Terrestrial Arable Land suitable non-breeding
Artificial/Terrestrial Pastureland suitable breeding
Artificial/Terrestrial Pastureland suitable non-breeding
Artificial/Terrestrial Urban Areas suitable breeding
Artificial/Terrestrial Urban Areas suitable non-breeding
Forest Temperate suitable breeding
Forest Temperate suitable non-breeding
Grassland Temperate suitable breeding
Grassland Temperate suitable non-breeding
Altitude   Occasional altitudinal limits  

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Food - human - - Non-trivial Recent
Pets/display animals, horticulture - - International Non-trivial Recent
Sport hunting/specimen collecting - - Non-trivial Recent

Recommended citation
BirdLife International (2021) Species factsheet: Corvus frugilegus. Downloaded from http://www.birdlife.org on 09/12/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 09/12/2021.