| Citation |
BirdLife International. 2017. Pica pica (amended version of 2016 assessment). The IUCN Red List of Threatened Species 2017: e.T103727048A112300389. https://dx.doi.org/10.2305/IUCN.UK.2017-1.RLTS.T103727048A112300389.en. Downloaded on 29 July 2020. |
Description |
JUSTIFICATION
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). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified but must be extremely large, and it therefore does not approach the thresholds for Vulnerable (<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.
DESCRIPTION
In Europe, the breeding population is estimated to number 7,500,000-19,000,000 breeding pairs, equating to 22,500,000-57,000,000 individuals (BirdLife International 2004). National population estimates include: c.10,000-100,000 breeding pairs in China; c.100-100,000 introduced breeding pairs in Taiwan; c.10,000-100,000 breeding pairs in Korea; c.100-10,000 breeding pairs (possibly introduced) in Japan and c.10,000-100,000 breeding pairs in Russia (Brazil 2009).
Trend Justification: In Europe, trends since 1980 have been stable, based on provisional data for 21 countries from the Pan-European Common Bird Monitoring Scheme (EBCC/RSPB/BirdLife/Statistics Netherlands; P. Vorisek in litt. 2008). |
