Data Zone
Taxonomic note
Phylloscopus poliogenys (del Hoyo and Collar 2016) was previously listed as Seicercus poliogenys.
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 | altitudinal migrant | Forest dependency | high |
| Land mass type | Average mass | 6 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 2,280,000 | |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | unknown | not applicable | not applicable | 0 |
| Population trend | stable | suspected | - | |
| Decline (3 years/1 generation past) | - | - | - | |
| Decline (5 years/1 generation past) | - | - | - | |
| Decline (10 years/1 generation past) | - | - | - | |
| Decline (10 years/3 generation future) | - | - | - | |
| Decline (10 years/3 generation past and future) | - | - | - | |
| Number of subpopulations | - | - | - | |
| Percentage in largest subpopulation | - | - | - |
Population justification: The global population size has not been quantified, but the species is reported to be locally common (Baker 1997).
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
| Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Bhutan | extant | native | ||||
| China (mainland) | extant | native | ||||
| India | extant | native | ||||
| Laos | extant | native | yes | |||
| Myanmar | extant | native | ||||
| Nepal | extant | native | ||||
| Thailand | extant | native | ||||
| Vietnam | extant | native |
| Country/Territory | IBA Name |
|---|---|
| Laos | Dakchung Plateau |
| Laos | Nakai-Nam Theun |
| Laos | Nam Ha |
| Laos | Nam Xam |
| Laos | Phou Ahyon |
| Laos | Phou Loeuy |
| Laos | Xe Sap |
| Nepal | Annapurna Conservation Area |
| Nepal | Mai Valley forests |
| Nepal | Makalu Barun National Park |
| Thailand | Doi Suthep-Pui |
| Thailand | Mae Jarim National Park |
| Vietnam | Fan Si Pan |
| Vietnam | Van Ban |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Temperate | major | resident |
| Altitude | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Phylloscopus poliogenys. Downloaded from
http://datazone.birdlife.org/species/factsheet/grey-cheeked-warbler-phylloscopus-poliogenys on 07/06/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 07/06/2023.
