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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Least Concern | |
| 2013 | Least Concern | |
| 2012 | Least Concern | |
| 2009 | Least Concern | |
| 2008 | Least Concern | |
| 2004 | Not Recognised | |
| 2000 | Not Recognised | |
| 1994 | Not Recognised | |
| 1988 | Not Recognised |
| Migratory status | not a migrant | Forest dependency | High |
| Land mass type | Average mass | 33 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 380,000 | |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 0 | |||
| Population trend | Decreasing | 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 | - | - | - | |
| Generation length (yrs) | 4.9 | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as generally common across its range (del Hoyo et al. 2007).
Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and fragmentation.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| China (mainland) | N | Extant | Yes | |||
| Laos | N | Extant | Yes | |||
| Myanmar | N | Extant | Yes | |||
| Thailand | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Thailand | Doi Inthanon |
| Thailand | Doi Suthep-Pui |
| Thailand | Doi Chiang Dao |
| Thailand | Mae Fang |
| Thailand | Mae Lao - Mae Sae |
| Thailand | Doi Phukha |
| Thailand | Nanthaburi |
| Thailand | Umphang |
| Thailand | Thung Yai - Naresuan |
| Thailand | Huai Kha Khaeng |
| Laos | Nam Ha |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Montane | major | resident |
| Altitude | 1000 - 2565 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Heterophasia melanoleuca. Downloaded from
http://www.birdlife.org on 30/03/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 30/03/2023.
