IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
A2c+3c+4c |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2008 |
Vulnerable |
| 2004 |
Vulnerable |
| 2000 |
Vulnerable |
| 1996 |
Vulnerable |
| 1994 |
Vulnerable |
| 1988 |
Threatened |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
High |
| Land mass type |
continent
shelf island
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
1,110,000 |
medium |
| Number of locations |
11-100 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
2500-9999 |
poor |
Estimated |
2000 |
| Population trend |
Decreasing |
poor |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
1001-1000000 |
- |
- |
- |
| Generation length (yrs) |
18.5 |
- |
- |
- |
|
Population justification: The population size is preliminarily estimated to fall into the band 2,500-9,999 mature individuals. This equates to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals. |
|
Trend justification: The species has suffered as a result of extensive forest loss owing to logging, conversion to plantations and agriculture, and major forest fires. As a result it is suspected to have declined rapidly. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Brunei |
Native |
No |
Yes |
|
|
| Indonesia |
Native |
No |
Yes |
|
|
| Malaysia |
Native |
No |
Yes |
|
|
| Myanmar |
Native |
No |
Yes |
|
|
| Thailand |
Native |
No |
Yes |
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Brunei |
Beliat Swamp Forest |
 |
| Brunei |
Seria Coast |
|
| Brunei |
Southern Ladan Hills |
|
| Brunei |
Ulu Temburong |
|
| Indonesia |
Bukit Bahar-Tajau Pecah |
|
| Indonesia |
Bukit Barisan Selatan |
|
| Indonesia |
Danau Sentarum |
|
| Indonesia |
Gunung Leuser |
|
| Indonesia |
Gunung Palung |
|
| Indonesia |
Gunung Singgalang |
|
| Indonesia |
Hutan Rawa Gambut Siak-Kampar |
|
| Indonesia |
Kerumutan |
|
| Indonesia |
Lahan Basah Mahakam Tengah |
|
| Indonesia |
Pulau Nias |
|
| Indonesia |
Pulau Siberut |
|
| Indonesia |
Sebuku Sembakung |
|
| Indonesia |
Sembilang |
|
| Indonesia |
Way Kambas |
|
| Malaysia |
Belum-Temenggor |
|
| Malaysia |
Central Titiwangsa Range |
|
| Malaysia |
Danum Valley Conservation Area |
|
| Malaysia |
Dulit Range |
|
| Malaysia |
Endau-Rompin |
|
| Malaysia |
Kabili-Sepilok |
|
| Malaysia |
Kinabatangan floodplain |
|
| Malaysia |
Krau Wildlife Reserve |
|
| Malaysia |
Lambir Hills National Park |
|
| Malaysia |
Lanjak Entimau Wildlife Sanctuary |
|
| Malaysia |
Maliau Basin Conservation Area |
|
| Malaysia |
Mulu - Buda Protected Area |
|
| Malaysia |
Niah National Park |
|
| Malaysia |
Panti forest |
|
| Malaysia |
Similajau National Park |
|
| Malaysia |
South-East Pahang peat swamp forest |
|
| Malaysia |
Tabin Wildlife Reserve |
|
| Malaysia |
Taman Negara National Park |
|
| Malaysia |
Tanjung Datu-Samunsam Protected Area |
|
| Myanmar |
Chaungmon-Wachaung |
|
| Myanmar |
Karathuri |
|
| Myanmar |
Ngawun |
|
| Myanmar |
Pachan |
|
| Thailand |
Hala-Bala Wildlife Sanctuary and Bang Lang National Park |
|
| Thailand |
Khao Banthad Wildlife Sanctuary |
|
| Thailand |
Khao Luang National Park |
|
| Thailand |
Khao Nor Chuchi (including Khao Pra-Bang Khram Wildlife Sanctuary) |
|
| Thailand |
Thale Ban National Park |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Artificial/Aquatic & Marine |
|
marginal |
resident |
| Forest |
Subtropical/Tropical Moist Lowland |
major |
resident |
|
Altitude
|
0 - 500 m
|
Occasional altitudinal limits
|
(max) 1000 m
|
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%) |
Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Small-holder farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Persecution/control |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Species mortality |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Unintentional effects: (large scale) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Rapid Declines |
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%) |
Rapid Declines |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Natural system modifications |
Fire & fire suppression / Increase in fire frequency/intensity |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Climate change & severe weather |
Droughts |
Timing |
Scope |
Severity |
Impact |
| Past, Likely to Return |
Minority (<50%) |
Causing/Could cause fluct |
Past Impact |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Pets |
Whole |
Adults and juveniles |
Wild |
International |
Trivial |
Recent |
Recommended citation
BirdLife International (2013) Species factsheet: Nisaetus nanus. Downloaded from
http://www.birdlife.org on 24/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 24/05/2013.
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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