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 | full migrant | Forest dependency | High |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 5,200,000 | medium |
| Extent of Occurrence non-breeding (km2) | 5,320,000 | medium |
| 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 | - | - | - | |
| Generation length (yrs) | 3.7 | - | - | - |
Population justification: The global population size has not been quantified, but the species is reported to be fairly common to uncommon (Grimmett et al. 1998, Robson 2000), while the population in Taiwan has been estimated at c.100-10,000 breeding pairs (Brazil 2009).
Trend justification:
The species is suspected to be stable in the absence of evidence for any declines or substantial threats.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Bangladesh | N | Extant | ||||
| Bhutan | N | Extant | ||||
| Cambodia | N | Extant | ||||
| China (mainland) | N | Extant | ||||
| India | N | Extant | ||||
| Laos | N | Extant | Yes | |||
| Myanmar | N | Extant | ||||
| Nepal | N | Extant | ||||
| Taiwan, China | N | Extant | ||||
| Thailand | N | Extant | ||||
| Vietnam | N | Extant |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Lowland | major | non-breeding |
| Forest | Subtropical/Tropical Moist Lowland | major | breeding |
| Forest | Subtropical/Tropical Moist Montane | major | non-breeding |
| Forest | Subtropical/Tropical Moist Montane | major | breeding |
| Altitude | Occasional altitudinal limits |
| Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
|---|---|---|---|---|---|---|
| Pets/display animals, horticulture | - | - | Non-trivial | Recent |
Recommended citation
BirdLife International (2021) Species factsheet: Oriolus traillii. Downloaded from
http://www.birdlife.org on 03/12/2021.
Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 03/12/2021.
