Data Zone
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.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| 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 |
| Migratory status | not a migrant | Forest dependency | medium |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 2,890,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | - |
| Generation length | 3.7 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as uncommon to fairly common (del Hoyo et al. 2007).
Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and fragmentation.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Brunei | extant | native | yes | |||
| Indonesia | extant | native | yes | |||
| Malaysia | extant | native | yes | |||
| Thailand | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Malaysia | Bau Limestone |
| Malaysia | Belum-Temenggor |
| Malaysia | Bintang Range |
| Malaysia | Danum Valley Conservation Area |
| Malaysia | Endau-Rompin |
| Malaysia | Gunung Pueh |
| Malaysia | Kabili-Sepilok |
| Malaysia | Kinabatangan floodplain |
| Malaysia | Krau Wildlife Reserve |
| Malaysia | Lambir Hills National Park |
| Malaysia | Lanjak Entimau Wildlife Sanctuary |
| Malaysia | Maliau Basin Conservation Area |
| Malaysia | Mount Kinabalu |
| Malaysia | Mulu - Buda Protected Area |
| Malaysia | Nakawan Range |
| Malaysia | Niah National Park |
| Malaysia | Panti forest |
| Malaysia | Selangor Heritage Park |
| Malaysia | Tabin Wildlife Reserve |
| Malaysia | Taman Negara National Park |
| Malaysia | Tanjung Datu-Samunsam Protected Area |
| Malaysia | Tawau Hills Park |
| Malaysia | Ulu Muda |
| Thailand | Bala Sector, Hala-Bala Wildlife Sanctuary |
| Thailand | Bu Do - Sungai Padi |
| Thailand | Hala Sector, Hala-Bala Wildlife Sanctuary and Bang Lang National Park |
| Thailand | Khao Banthad |
| Thailand | Khao Luang |
| Thailand | Khao Nor Chuchi |
| Thailand | Thaleban |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Plantations | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Grey-headed Babbler Stachyris poliocephala. Downloaded from
https://datazone.birdlife.org/species/factsheet/grey-headed-babbler-stachyris-poliocephala on 26/11/2024.
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 26/11/2024.