IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
C2a(i) |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2010 |
Vulnerable |
| 2008 |
Near Threatened |
| 2004 |
Near Threatened |
| 2000 |
Lower Risk/Least Concern |
| 1994 |
Lower Risk/Near Threatened |
| 1988 |
Near Threatened |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
High |
| Land mass type |
continent
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
469,000 |
medium |
| Number of locations |
|
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
1000-2499 |
poor |
Estimated |
2010 |
| Population trend |
Decreasing |
poor |
|
- |
| Number of subpopulations |
2-100 |
- |
- |
- |
| Largest subpopulation |
251-1000 |
- |
- |
- |
| Generation length (yrs) |
18.5 |
- |
- |
- |
|
Population justification: The population in Venezuela has been estimated in the low hundreds (C. J. Sharpe in litt. 2003). Opinions on the population in Colombia differ: one population alone is thought to support a few hundred individuals (T. Donegan in litt. 2010), or the total population may be fewer than 100 adults (C. Márquez in litt. 2012). The population in Ecuador is thought to consist a maximum of 200 mature individuals. The global population has been estimated to be larger than 1,000 individuals (T. Donegan in litt. 2010, Y. Molina in litt. 2010) or fewer than this (H. Vargas in litt. 2012). Given that further populations exist both in Colombia and in other range countries, it is reasonable to estimate a population of 1,000-2,499 mature individuals. This equates to 1,500-3,749 individuals in total, rounded here to 1,500-4,000 individuals. However, a complete survey of this species throughout its range is needed to accurately quantify its global population. |
|
Trend justification: This species is thought to prefer primary forests (C. J. Sharpe in litt. 2003, T. Donegan in litt. 2010), although it may persist in mosaics of primary and secondary forest with open areas (C. Márquez in litt. 2012). Given habitat loss (Thiollay 1994) and persecution by humans (H. Vargas in litt. 2012) throughout its range, the population is considered to be declining. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Argentina |
Native |
No |
Yes |
|
|
| Bolivia |
Native |
No |
Yes |
|
|
| Colombia |
Native |
No |
Yes |
|
|
| Ecuador |
Native |
No |
Yes |
|
|
| Peru |
Native |
No |
Yes |
|
|
| Venezuela |
Native |
No |
|
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Argentina |
Acambuco |
 |
| Argentina |
Cerro Negro de San Antonio |
|
| Argentina |
Cuesta de las Higuerillas |
|
| Argentina |
Itiyuro-Tuyunti |
|
| Argentina |
La Cornisa |
|
| Argentina |
Parque Nacional Calilegua |
|
| Argentina |
Yala |
|
| Colombia |
Bosques del Oriente de Risaralda |
|
| Colombia |
Cañón del Río Barbas y Bremen |
|
| Colombia |
Cerro Pintado (part of Serranía de Perijá transboundary AZE) |
|
| Colombia |
Chicoral |
|
| Colombia |
Cuchilla de San Lorenzo |
|
| Colombia |
Cuenca del Río Hereje |
|
| Colombia |
Cuenca del Río Toche |
|
| Colombia |
La Planada Natural Reserve (Reserva Natural La Planada IBA) |
|
| Colombia |
Munchique Natural National Park (Parque Nacional Natural Munchique IBA) |
|
| Colombia |
Parque Nacional Natural Macuira |
|
| Colombia |
Parque Natural Regional Páramo del Duende |
|
| Colombia |
Puracé (Parque Nacional Natural Puracé IBA) |
|
| Colombia |
Reserva El Oso |
|
| Colombia |
Reserva Natural El Pangán |
|
| Colombia |
Reserva Natural Ibanasca |
|
| Colombia |
Reserva Natural Río Ñambí |
|
| Colombia |
Reserva Natural Tambito |
|
| Colombia |
Serranía de las Minas |
|
| Colombia |
Serranía de los Churumbelos |
|
| Colombia |
Serranía de los Paraguas |
|
| Colombia |
Valle de San Salvador |
|
| Colombia |
Valle del Río Frío |
|
| Peru |
Manu |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Forest |
Subtropical/Tropical Moist Montane |
major |
resident |
|
Altitude
|
1500 - 2800 m
|
Occasional altitudinal limits
|
150 - 3400 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%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Livestock farming & ranching / Agro-industry grazing, ranching or 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 |
Minority (<50%) |
Unknown |
Unknown |
| Stresses |
|---|
| Species mortality |
|
Recommended citation
BirdLife International (2013) Species factsheet: Spizaetus isidori. 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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