LC
Brown-headed Thrush Turdus chrysolaus



Taxonomy

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.

IUCN Red List criteria met and history
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
Species attributes

Migratory status full migrant Forest dependency medium
Land-mass type Average mass 65 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 1,620,000 km2
Extent of Occurrence (non-breeding) 3,190,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - - -
Generation length 3.08 years - - -

Population justification: The global population size has not been quantified, but the species is described as common to fairly rare (del Hoyo et al. 2005), while national population estimates include: c.50-1,000 individuals on migration and c.50-1,000 wintering individuals in China; c.1,000-10,000 individuals on migration and c.1,000-10,000 wintering individuals in Taiwan; c.10,000-100,000 breeding pairs, c.1,000-10,000 individuals on migration and c.50-10,000 wintering individuals in Japan and c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in Russia (Brazil 2009). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 2.5% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.

Trend justification:   .


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
China (mainland) extant native
Japan extant native
North Korea extant native yes
Philippines extant native
Russia extant native
Russia (Asian) extant native
South Korea extant native
Taiwan, China extant native

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Japan Mount Fuji
Japan Mount Hyonosen
Japan Mounts Asahidake and Gassan
Japan Mounts Azuma and Bandai
Japan Okutadami, Okunikko and Okutone mountains
Japan Tsurugi range

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable non-breeding
Artificial/Terrestrial Rural Gardens suitable non-breeding
Forest Subtropical/Tropical Dry suitable non-breeding
Forest Temperate major breeding
Shrubland Subtropical/Tropical Dry suitable non-breeding
Altitude 0 - 2750 m Occasional altitudinal limits  

Utilisation
Purpose Scale
Pets/display animals, horticulture international

Recommended citation
BirdLife International (2024) Species factsheet: Brown-headed Thrush Turdus chrysolaus. Downloaded from https://datazone.birdlife.org/species/factsheet/brown-headed-thrush-turdus-chrysolaus on 08/12/2024.
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 08/12/2024.