Data Zone
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 |
|---|---|---|
| 2018 | 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 |
| Migratory status | not a migrant | Forest dependency | high |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 552,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | inferred | - |
| Generation length | 6.7 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as common in most of its range, especially at higher elevations (del Hoyo et al. 2007).
Trend justification:
The species is tentatively assessed as being in decline due to habitat loss per Tracewski et al. (2016).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Indonesia | extant | native | yes | |||
| Malaysia | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Indonesia | Gunung Niut-Poteng |
| Indonesia | Ulu Barito |
| Indonesia | Ulu Telen |
| Malaysia | Baleh headwaters |
| Malaysia | Bungo Range |
| Malaysia | Crocker Range |
| Malaysia | Danum-Linau |
| Malaysia | Dulit Range |
| Malaysia | Gunung Penrissen |
| Malaysia | Gunung Pueh |
| Malaysia | Hose-Laga mountains |
| Malaysia | Kelabit Highlands |
| Malaysia | Lanjak Entimau Wildlife Sanctuary |
| Malaysia | Maliau Basin Conservation Area |
| Malaysia | Mount Kinabalu |
| Malaysia | Mulu - Buda Protected Area |
| Malaysia | Tanjung Datu-Samunsam Protected Area |
| Malaysia | Trus Madi Range |
| Malaysia | Usun Apau plateau |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Montane | major | resident |
| Altitude | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Bornean Whistler Pachycephala hypoxantha. Downloaded from
https://datazone.birdlife.org/species/factsheet/bornean-whistler-pachycephala-hypoxantha on 22/11/2024.
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 22/11/2024.