Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
Gjershaug, J.O.; Kvalfy, K.; Rfv, N.; Prawiradilaga, D.M.; Suparman, U.; Rahman, Z. 2004. The taxonomic status of Flores Hawk Eagle Spizaetus floris. Forktail 20: 55-62.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
C2a(ii) | A2cd+3cd+4cd; C2a(i,ii); D | A2cd+3cd+4cd; C2a(i,ii); D1 |
Year | Category | Criteria |
---|---|---|
2016 | Critically Endangered | C2a(ii) |
2015 | Critically Endangered | C2a(ii) |
2013 | Critically Endangered | C2a(ii) |
2012 | Critically Endangered | C2a(ii) |
2009 | Critically Endangered | C2a(ii) |
2008 | Endangered | |
2005 | Endangered | |
2004 | Not Recognised | |
2000 | Not Recognised | |
1994 | Not Recognised | |
1988 | Not Recognised |
Migratory status | not a migrant | Forest dependency | High |
Land mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 85,900 | medium |
Number of locations | 11-100 | - |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | 100-240 | medium | estimated | 2004 |
Population trend | Decreasing | poor | estimated | - |
Decline (3 years/1 generation past) | - | - | - | |
Decline (5 years/1 generation past) | - | - | - | |
Decline (10 years/1 generation past) | - | - | - | |
Decline (10 years/3 generation future) | 50-79 | - | - | - |
Decline (10 years/3 generation past and future) | 50-79 | - | - | - |
Number of subpopulations | 1 | - | - | - |
Percentage in largest subpopulation | 100 | - | - | - |
Generation length (yrs) | 18.5 | - | - | - |
Population justification: On the basis of distances between three neighbouring territories, the species's territory size was estimated at c. 40km2. Given that it is primarily dependent on forest, this implies that the total population size for the species is probably less than 100 pairs or 200 mature individuals. In addition at least 20 pairs have been estimated to occur on the island of Alor, representing another 40 mature individuals. It is estimated at 100-240 mature individuals, roughly equivalent to 150-360 individuals in total.
Trend justification: No empirical data are available, but deforestation and persecution are likely to be causing an on-going decline. Given the species's longevity scaled over the past three generations it has almost certainly experienced a very rapid decline.
Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Indonesia | N | Extant | Yes |
Country/Territory | IBA Name |
---|---|
Indonesia | Kelimutu |
Indonesia | Mbeliling - Tanjung Kerita Mese |
Indonesia | Nangarawa |
Indonesia | Ruteng |
Indonesia | Gunung Rinjani |
Indonesia | Komodo - Rinca |
Indonesia | Kunggwera |
Indonesia | Tuti Adagae |
Indonesia | Mainang |
Indonesia | Tatar Sepang |
Indonesia | Puncak Ngengas |
Indonesia | Todo Repok |
Indonesia | Wae Wuul |
Indonesia | Nggorang Bowosie |
Indonesia | Sesok |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Arable Land | suitable | resident |
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Forest | Subtropical/Tropical Moist Montane | suitable | resident |
Altitude | 0 - 1600 m | Occasional altitudinal limits |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
|||||||||
Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Hunting & trapping terrestrial animals - Persecution/control | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
---|---|---|---|---|---|---|
Pets/display animals, horticulture | - | - | Non-trivial | Recent |
Recommended citation
BirdLife International (2023) Species factsheet: Nisaetus floris. 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.