|Scientific Name:||Perisoreus infaustus|
|Species Authority:||(Linnaeus, 1758)|
|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#.|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Reviewer(s):||Butchart, S. & Symes, A.|
|Facilitator/Compiler(s):||Ekstrom, J., Butchart, S.|
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
|Previously published Red List assessments:||
Native:China; Finland; Kazakhstan; Mongolia; Norway; Russian Federation; Sweden
Vagrant:Belarus; Estonia; Latvia; Poland; Slovakia; Ukraine
|Continuing decline in area of occupancy (AOO):||Unknown|
|Extreme fluctuations in area of occupancy (AOO):||No|
|Estimated extent of occurrence (EOO) - km2:||10900000|
|Continuing decline in extent of occurrence (EOO):||Unknown|
|Extreme fluctuations in extent of occurrence (EOO):||No|
|Continuing decline in number of locations:||Unknown|
|Extreme fluctuations in the number of locations:||No|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||In Europe, the breeding population is estimated to number 340,000-710,000 breeding pairs, equating to 1,020,000-2,130,000 individuals (BirdLife International 2004). Europe forms 25-49% of the global range, so a very preliminary estimate of the global population size is 2,080,000-8,520,000 individuals, although further validation of this estimate is needed. National population sizes have been estimated at c.100-100,000 breeding pairs in China and c.100-100,000 breeding pairs in Russia (Brazil 2009).
Trend Justification: This population is estimated to be in decline following decreases in the southern edge of its range (Madge and Burn 1993).
|Current Population Trend:||Decreasing|
|Citation:||BirdLife International. 2012. Perisoreus infaustus. The IUCN Red List of Threatened Species 2012: e.T22705775A39432137. . Downloaded on 28 November 2015.|
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