|Scientific Name:||Lanius bucephalus Temminck & Schlegel, 1847|
|Taxonomic Source(s):||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 Category & Criteria:||Least Concern ver 3.1|
|Reviewer(s):||Butchart, S. & Symes, A.|
|Facilitator/Compiler(s):||Butchart, S., Ekstrom, J., Wheatley, H.|
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 (Eastern Asian Russia)
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|
|Amended reason:||Map edited: Gansu shade (subspecies sicarius) changed Seasonality from breeding to resident and shaded Bonin (Ogasawara) and Daito islands. EOO updated.|
|Citation:||BirdLife International. 2017. Lanius bucephalus (amended version of assessment). The IUCN Red List of Threatened Species 2017: e.T22704998A118773936.Downloaded on 21 April 2018.|
|Feedback:||If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided|