IUCN Red List Criteria
| Critically Endangered |
A2abce+3bce+4abce |
| Endangered |
A2abce+3bce+4abce |
| Vulnerable |
A2abce+3bce+4abce;C2a(ii) |
IUCN Red List history
| Year |
Category |
| 2012 |
Critically Endangered |
| 2009 |
Critically Endangered |
| 2008 |
Critically Endangered |
| 2007 |
Critically Endangered |
| 2004 |
Near Threatened |
| 2000 |
Lower Risk/Near Threatened |
| 1994 |
Lower Risk/Near Threatened |
| 1988 |
Lower Risk/Least Concern |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
Medium |
| Land mass type |
continent
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
3,690,000 |
medium |
| Number of locations |
11-100 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
2500-9999 |
poor |
Estimated |
2007 |
| Population trend |
Decreasing |
medium |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
1001-10000 |
- |
- |
- |
| Generation length (yrs) |
15 |
- |
- |
- |
|
Population justification: Given its rarity in South-East Asia, it is unlikely that more than a few hundred individuals remain, while the total population seems unlikely to exceed 10,000 mature individuals given the patchiness of its distribution across India and the apparently catastrophic very recent declines. In light of this it is placed in the band 2,500-9,999 mature individuals. This equates to 3,750-14,999 individuals in total, here rounded to 3,500-15,000 individuals. |
|
Trend justification: Cuthbert et al. (2006) calculate a decline in excess of 90% within 10 years in India. Similar declines are expected throughout the Indian Subcontinent. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Bangladesh |
Native |
No |
|
|
|
| Bhutan |
Native |
possibly |
|
|
|
| Cambodia |
Native |
No |
|
|
|
| China (mainland) |
Native |
No |
|
|
|
| India |
Native |
No |
|
|
|
| Laos |
Native |
No |
|
|
|
| Malaysia |
Native |
possibly |
|
|
|
| Myanmar |
Native |
No |
|
|
|
| Nepal |
Native |
No |
|
|
|
| Pakistan |
Vagrant |
No |
|
Yes |
|
| Thailand |
Native |
No |
|
|
|
| Vietnam |
Native |
No |
|
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Cambodia |
Chhep |
 |
| Cambodia |
Lomphat |
|
| Cambodia |
Mekong River from Kratie to Laos |
|
| Cambodia |
Mondulkiri / Kratie Lowlands |
|
| Cambodia |
Sekong River |
|
| Cambodia |
Sesan River |
|
| Cambodia |
Upper Srepok Catchment |
|
| Cambodia |
Upper Stung Sen Catchment |
|
| Cambodia |
Western Siem Pang |
|
| Laos |
Attapu Plain |
|
| Laos |
Dong Khanthung |
|
| Laos |
Siphandon |
|
| Nepal |
Annapurna Conservation Area |
|
| Nepal |
Barandabhar forests and wetlands |
|
| Nepal |
Bardia National Park |
|
| Nepal |
Chitwan National Park |
|
| Nepal |
Dang Deukhuri foothill forests and west Rapti wetlands |
|
| Nepal |
Dharan forests |
|
| Nepal |
Farmlands in Lumbini area |
|
| Nepal |
Khaptad National Park |
|
| Nepal |
Koshi Tappu Wildlife Reserve and Koshi Barrage |
|
| Nepal |
Langtang National Park |
|
| Nepal |
Mai Valley forests |
|
| Nepal |
Nawalparasi forests |
|
| Nepal |
Rampur valley |
|
| Nepal |
Sukla Phanta Wildlife Reserve |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Artificial/Terrestrial |
Urban Areas |
marginal |
resident |
| Forest |
Subtropical/Tropical Dry |
major |
resident |
| Grassland |
Subtropical/Tropical Dry |
suitable |
resident |
| Savanna |
Dry |
suitable |
resident |
| Shrubland |
Subtropical/Tropical Dry |
suitable |
resident |
|
Altitude
|
0 - 2500 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 |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Persecution/control |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Negligible declines |
Low Impact: 5 |
| Stresses |
|---|
| Species mortality |
|
| Biological resource use |
Gathering terrestrial plants / Unintentional effects (species is not the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Indirect ecosystem effects |
|
| Natural system modifications |
Other ecosystem modifications |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Pollution |
Agricultural & forestry effluents / Type Unknown/Unrecorded |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Very Rapid Declines |
High Impact: 8 |
| Stresses |
|---|
| Species mortality |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Pets |
Whole |
Adults and juveniles |
Wild |
International |
Non-trivial |
Recent |
Recommended citation
BirdLife International (2013) Species factsheet: Sarcogyps calvus. Downloaded from
http://www.birdlife.org on 23/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 23/05/2013.
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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