Taxonomic note
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.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
2016 | Near Threatened | A2e+3e+4e; B1ab(iii,v); C1+2a(ii) |
2012 | Near Threatened | A2e+3e+4e; B1ab(iii,v); C1+2a(ii) |
2008 | Near Threatened | A2e; A3e; A4e |
2004 | Not Recognised | |
2000 | Not Recognised | |
1994 | Not Recognised | |
1988 | Not Recognised |
Migratory status | not a migrant | Forest dependency | medium |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 34,200 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 6700 mature individuals | poor | inferred | 2007 |
Population trend | decreasing | poor | suspected | 2009-2023 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
Generation length | 4.7 years | - | - | - |
Population justification: The global population is estimated to number more than 10,000 individuals (Simba Chan in litt 2007), roughly equivalent to c.6,700 mature individuals.
Trend justification: The population is suspected to be declining owing to genetic swamping through hybridisation with the introduced Chinese Hwamei G. canorum.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Taiwan, China | extant | native | yes |
Country/Territory | IBA Name |
---|
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | major | resident |
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Altitude | 0 - 1200 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Invasive and other problematic species, genes & diseases | Problematic native species/diseases | Timing | Scope | Severity | Impact | ||||
Ongoing | Whole (>90%) | Slow, Significant Declines | Medium Impact: 7 | ||||||
|
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Residential & commercial development | Housing & urban areas | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Recommended citation
BirdLife International (2024) Species factsheet: Taiwan Hwamei Garrulax taewanus. Downloaded from
https://datazone.birdlife.org/species/factsheet/taiwan-hwamei-garrulax-taewanus 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.