IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
C2a(ii) |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2010 |
Vulnerable |
| 2008 |
Vulnerable |
| 2007 |
Vulnerable |
| 2004 |
Vulnerable |
| 2000 |
Vulnerable |
| 1996 |
Vulnerable |
| 1994 |
Vulnerable |
| 1988 |
Threatened |
Species attributes
| Migratory status |
full migrant |
Forest dependency |
High |
| Land mass type |
continent
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
11,600 |
medium |
| Extent of Occurrence non-breeding (km2) |
11,600 |
medium |
| Number of locations |
11-100 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
2500-9999 |
poor |
Estimated |
2000 |
| Population trend |
Decreasing |
poor |
|
- |
| Number of subpopulations |
1 |
- |
- |
- |
| Largest subpopulation |
2500-9999 |
- |
- |
- |
| Generation length (yrs) |
3.7 |
- |
- |
- |
|
Population justification: The population is estimated to number 2,500-9,999 mature individuals based on an assessment of known records, descriptions of abundance and range size. This is consistent with recorded population density estimates for congeners or close relatives with a similar body size, and the fact that only a proportion of the estimated Extent of Occurrence is likely to be occupied. This estimate is equivalent to 3,750-14,999 individuals, rounded here to 3,500-15,000 individuals. |
|
Trend justification: The species is suspected to have declined at a moderate rate owing to forest clearance and degradation in its breeding and wintering grounds. Much remaining forest in the breeding strongholds of Sichuan, China, were earmarked as forest concessions for clearance in the next 20-25 years; however, a ban on logging in this area may prevent this rapid increase in logging pressure within the species's range. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Cambodia |
Native |
No |
|
Yes |
|
| China (mainland) |
Native |
No |
Yes |
|
|
| Thailand |
Native |
No |
|
Yes |
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| China (mainland) |
Daming Shan |
 |
| China (mainland) |
Dayao Shan Nature Reserve |
|
| China (mainland) |
Dazhubao and Dafengding |
|
| China (mainland) |
Huping Shan Nature Reserve |
|
| China (mainland) |
Longhu Shan |
|
| China (mainland) |
Longlin-Xilin |
|
| China (mainland) |
Mamize Nature Reserve |
|
| China (mainland) |
Mao'er Shan Nature Reserve |
|
| China (mainland) |
Maolan Nature Reserve |
|
| China (mainland) |
Maozi Feng |
|
| China (mainland) |
Nanling mountains |
|
| China (mainland) |
Shiwan Dashan Nature Reserve |
|
| Thailand |
Kaeng Krachan National Park |
|
| Thailand |
Khao Ang Ru Nai Wildlife Sanctuary |
|
| Thailand |
Khao Soi Dao Wildlife Sanctuary |
|
| Thailand |
Khao Yai National Park |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Forest |
Subtropical/Tropical Moist Lowland |
suitable |
non-breeding |
| Forest |
Subtropical/Tropical Moist Lowland |
suitable |
breeding |
| Forest |
Subtropical/Tropical Moist Montane |
major |
non-breeding |
| Forest |
Subtropical/Tropical Moist Montane |
major |
breeding |
|
Altitude
|
600 - 1700 m
|
Occasional altitudinal limits
|
|
Threats & impact
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Agro-industry farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Small-holder farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Unintentional effects: (subsistence/small scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Hunting & trapping terrestrial animals / Intentional use (species is the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Unknown |
Unknown |
|
| Natural system modifications |
Fire & fire suppression / Increase in fire frequency/intensity |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
Recommended citation
BirdLife International (2013) Species factsheet: Oriolus mellianus. Downloaded from
http://www.birdlife.org on 21/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 21/05/2013.
This information is based upon, and updates, the information published in BirdLife International (2000)
Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004)
Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.
To provide new information to update this factsheet or to correct any errors, please email BirdLife
To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.
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