LC
Korean Bush-warbler Horornis canturians



Taxonomy

Taxonomic note
Horornis canturians (del Hoyo and Collar 2016) was previously listed as Cettia canturians.

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
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 low
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 2,410,000 km2
Extent of Occurrence (non-breeding) 1,810,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend stable - suspected -
Generation length 3.7 years - - -

Population justification: The global population size has not been quantified, but the species is reported to be fairly common and locally abundant. The species is reported to be abundant on Oahu where it was introduced (Pratt et al. 1987, Baker 1997). 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 individuals on migration and > c.10,000 wintering individuals in Taiwan; c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in Korea; < c.50 individuals on migration and < c.50 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).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
China (mainland) extant native
Hong Kong (China) extant native
India extant vagrant yes yes
Laos extant native
Philippines extant native
Taiwan, China extant native yes yes
Thailand extant native
Vietnam extant native

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Rural Gardens suitable breeding
Artificial/Terrestrial Rural Gardens suitable non-breeding
Artificial/Terrestrial Urban Areas suitable non-breeding
Forest Subtropical/Tropical Moist Montane suitable breeding
Forest Subtropical/Tropical Moist Montane suitable non-breeding
Grassland Subtropical/Tropical Dry major breeding
Grassland Subtropical/Tropical Dry major non-breeding
Shrubland Subtropical/Tropical Moist suitable breeding
Shrubland Subtropical/Tropical Moist suitable non-breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable non-breeding
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Korean Bush-warbler Horornis canturians. Downloaded from https://datazone.birdlife.org/species/factsheet/korean-bush-warbler-horornis-canturians on 22/12/2024.
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 22/12/2024.