email a friend
printable version
VU
Wallace's Hawk-eagle Nisaetus nanus

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 Presence Breeding Non-breeding Passage Resident
Brunei Native Extant Yes      
Indonesia Native Extant Yes      
Malaysia Native Extant Yes      
Myanmar Native Extant Yes      
Thailand Native Extant Yes      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Brunei Belait Swamp Forest site factsheet
Brunei Seria Coast site factsheet
Brunei Southern Ladan Hills site factsheet
Brunei Ulu Temburong site factsheet
Indonesia Bukit Bahar-Tajau Pecah site factsheet
Indonesia Bukit Barisan Selatan site factsheet
Indonesia Danau Sentarum site factsheet
Indonesia Gunung Leuser site factsheet
Indonesia Gunung Palung site factsheet
Indonesia Gunung Singgalang site factsheet
Indonesia Hutan Rawa Gambut Siak-Kampar site factsheet
Indonesia Kerumutan site factsheet
Indonesia Lahan Basah Mahakam Tengah site factsheet
Indonesia Pulau Nias site factsheet
Indonesia Pulau Siberut site factsheet
Indonesia Sebuku Sembakung site factsheet
Indonesia Sembilang site factsheet
Indonesia Way Kambas site factsheet
Malaysia Belum-Temenggor site factsheet
Malaysia Central Titiwangsa Range site factsheet
Malaysia Danum Valley Conservation Area site factsheet
Malaysia Dulit Range site factsheet
Malaysia Endau-Rompin site factsheet
Malaysia Kabili-Sepilok site factsheet
Malaysia Kinabatangan floodplain site factsheet
Malaysia Krau Wildlife Reserve site factsheet
Malaysia Lambir Hills National Park site factsheet
Malaysia Lanjak Entimau Wildlife Sanctuary site factsheet
Malaysia Maliau Basin Conservation Area site factsheet
Malaysia Mulu - Buda Protected Area site factsheet
Malaysia Niah National Park site factsheet
Malaysia Panti forest site factsheet
Malaysia Similajau National Park site factsheet
Malaysia South-East Pahang peat swamp forest site factsheet
Malaysia Tabin Wildlife Reserve site factsheet
Malaysia Taman Negara National Park site factsheet
Malaysia Tanjung Datu-Samunsam Protected Area site factsheet
Myanmar Chaungmon-Wachaung site factsheet
Myanmar Karathuri site factsheet
Myanmar Ngawun (Lenya extension) site factsheet
Myanmar Pachan site factsheet
Thailand Bala Sector, Hala-Bala Wildlife Sanctuary site factsheet
Thailand Khao Banthad site factsheet
Thailand Khao Luang site factsheet
Thailand Khao Nor Chuchi site factsheet
Thailand Thaleban site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest 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: 7
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 Hunting & trapping terrestrial animals / Persecution/control Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Species mortality
Biological resource use Logging & wood harvesting / Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting / Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Rapid Declines Medium Impact: 7
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
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

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 (2014) Species factsheet: Nisaetus nanus. Downloaded from http://www.birdlife.org on 20/08/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 20/08/2014.

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.

Key facts
Current IUCN Red List category Vulnerable
Family Accipitridae (Hawks, Eagles)
Species name author (Wallace, 1868)
Population size 2500-9999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 1,110,000 km2
Country endemic? No
Links to further information
- Summary information on this species