• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2024	Least Concern
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

Migratory status	not a migrant	Forest dependency	high
Land-mass type		Average mass	-

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	19,300,000 km2
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	2130000-4150000 mature individuals	poor	estimated	2018
Population trend	decreasing	-	estimated	-
Generation length	6.36 years	-	-	-

Population justification: In Europe, the total population size is estimated at 426,000-830,000 mature individuals, with 213,000-415,000 breeding pairs (BirdLife International 2021), and comprises approximately 20% of the species' global range, so a very preliminary estimate of the global population size is between 2,130,000-4,150,000 mature individuals, although further validation of this estimate is desirable. The current European population trend for this species is not known, although it is thought to have decreased since the 1980s (BirdLife International 2021). This species is considered to have a high dependency on forest habitat, which is estimated to be declining at a slow rate within its mapped range (Global Forest Watch 2024)

Trend justification:    .

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Belarus	extant	vagrant			yes
China (mainland)	extant	native	yes
Estonia	extant	vagrant			yes
Finland	extant	native	yes
Kazakhstan	extant	native		yes
Latvia	extant	vagrant			yes
Mongolia	extant	native	yes
Norway	extant	native		yes
Poland	extant	vagrant			yes
Russia	extant	native	yes	yes
Russia (Asian)	extant	native		yes
Russia (Central Asian)	extant	native	yes
Russia (European)	extant	native	yes
Slovakia	extant	vagrant			yes
Sweden	extant	native	yes
Ukraine	extant	vagrant			yes

Country/Territory	IBA Name
Finland	Elimyssalo
Finland	Joutsenaapa-Kaita-aapa
Finland	Juortanansalo
Finland	Kemihaara (Vuotos) mires and forests
Finland	Lemmenjoki-Hammastunturi-Pulju
Finland	Litokaira
Finland	Luosto
Finland	Maltio fjelds
Finland	Oulanka-Sukerijärvi
Finland	Pajupuronsuo-Isosuo-Kivisuo
Finland	Pallas and Ylläs fjelds
Finland	Pomokaira-Koitelaiskaira
Finland	Riisitunturi
Finland	Runkaus-Saariaapa-Tainijärvet
Finland	Saariselkä and Koilliskaira
Finland	Syöte-Salmitunturi
Finland	Talaskangas
Finland	Värriö-Tuntsa
Kazakhstan	Paradise Valley mountain plateau
Norway	Øvre Anárjohka
Norway	Øvre Pasvik
Norway	Reisa
Russia (Asian)	Dal'dzi lake
Russia (Asian)	Evoron-Chukchagirskoye depression
Russia (Asian)	Forty Islands
Russia (Asian)	Mukhtel' lake
Russia (Asian)	Muna-Besyuke
Russia (Asian)	Northern slope of Khamar-Daban mountains
Russia (Asian)	Schast'ya Gulf
Russia (Asian)	Shantarskiye Islands
Russia (Asian)	Tunkin valley
Russia (Asian)	Udyl' lake
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)	Bystroistokskaya
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)	Flood-plain of the Tuy river
Russia (Central Asian)	Kondinskiye lakes
Russia (Central Asian)	Korgonskaya
Russia (Central Asian)	Kurkure mountain
Russia (Central Asian)	Shapshal ridge
Russia (Central Asian)	Teletskoye lake
Russia (Central Asian)	Verkhne-Kondinsky zakaznik
Russia (Central Asian)	Visimsky zapovednik and vicinity
Russia (Central Asian)	Watershed of the Mulym'ya and Bolshoy Tap rivers
Russia (Central Asian)	Zaikovo forest
Russia (Central Asian)	Zapovednik "Denezhkin Kamen'"
Russia (European)	Adovo-Chugrumski wetland
Russia (European)	Iremel'ski mountain
Russia (European)	Kumikushski wetland
Russia (European)	Lapland Biosphere Reserve
Russia (European)	Pizhemski reserve
Russia (European)	Ponoiskaya depression
Russia (European)	Valley of Sysola river
Russia (European)	Verkhnevisherski mountain
Russia (European)	Yamantau mountain
Russia (European)	Yugyd Va

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Boreal	major	resident
Forest	Temperate	suitable	resident
Altitude	0 - 2200 m	Occasional altitudinal limits

Purpose	Scale
Pets/display animals, horticulture	international

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Recommended citation
BirdLife International (2024) Species factsheet: Siberian Jay Perisoreus infaustus. Downloaded from https://datazone.birdlife.org/species/factsheet/siberian-jay-perisoreus-infaustus on 23/12/2024.
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 23/12/2024.