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 | Medium |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 1,600,000 | |
| Extent of Occurrence non-breeding (km2) | 2,000,000 | |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | unknown | not applicable | not applicable | 0 |
| Population trend | Decreasing | inferred | - | |
| 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 described as scarce in Nepal, uncommon in India and locally fairly common in Bhutan (Grimmett et al. 1998)
Trend justification:
The species is tentatively assessed as being in decline due to habitat loss per Tracewski et al. (2016) and unsustainable levels of hunting.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Bangladesh | N | Extant | Yes | |||
| Bhutan | N | Extant | Yes | |||
| China (mainland) | N | Extant | Yes | |||
| India | N | Extant | ||||
| Laos | N | Extant | Yes | |||
| Myanmar | N | Extant | Yes | |||
| Nepal | N | Extant | Yes | |||
| Sri Lanka | V | Extant | Yes | |||
| Thailand | N | Extant | Yes | |||
| Vietnam | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Laos | Phou Loeuy |
| Vietnam | Bi Dup - Nui Ba |
| Nepal | Dang Deukhuri foothill forests and west Rapti wetlands |
| India | Barail Wildlife Sanctuary |
| India | Barail Range forests |
| Vietnam | Bi Dup |
| Vietnam | Tuyen Lam |
| Thailand | Doi Chiang Dao |
| Thailand | Doi Inthanon |
| Thailand | Doi Suthep-Pui |
| Thailand | Kaeng Krachan |
| Thailand | Mae Fang |
| Thailand | Mae Jarim National Park |
| Thailand | Nanthaburi |
| Thailand | Thung Yai - Naresuan |
| Thailand | Umphang |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | non-breeding |
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | breeding |
| Forest | Subtropical/Tropical Dry | major | non-breeding |
| Forest | Subtropical/Tropical Dry | major | breeding |
| Forest | Subtropical/Tropical Moist Lowland | suitable | non-breeding |
| Forest | Subtropical/Tropical Moist Lowland | suitable | breeding |
| Forest | Subtropical/Tropical Moist Montane | suitable | non-breeding |
| Forest | Subtropical/Tropical Moist Montane | suitable | breeding |
| Altitude | Occasional altitudinal limits |
| Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
|---|---|---|---|---|---|---|
| Pets/display animals, horticulture | - | - | International | Non-trivial | Recent |
Recommended citation
BirdLife International (2023) Species factsheet: Oriolus tenuirostris. Downloaded from
http://www.birdlife.org on 30/01/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 30/01/2023.
