|Scientific Name:||Lanius bucephalus|
|Species Authority:||Temminck & Schlegel, 1847|
|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 has not been quantified, but it is not believed to 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; Japan; Korea, Democratic People's Republic of; Korea, Republic of; Russian Federation
Vagrant:Hong Kong; Taiwan, Province of China; Viet Nam
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||The global population size has not been quantified, but the species is described as not uncommon (Harris and Franklin 2,000), while national population estimates include: c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in China; c.10,000-100,000 breeding pairs in Korea; c.10,000-100,000 breeding pairs and c.1,000-10,000 wintering individuals in Japan and c.100-100,000 breeding pairs and c.50-10,000 individuals on migration in Russia (Brazil 2009).|
Trend Justification: This population is estimated to be declining on the basis of a decline in Japan during the 1980s and 1990s (Harris and Franklin 2000).
|Current Population Trend:||Decreasing|
|Citation:||BirdLife International. 2012. Lanius bucephalus. The IUCN Red List of Threatened Species 2012: e.T22704998A39365810.Downloaded on 29 August 2016.|
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