Data Zone
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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2023 | Least Concern | |
| 2016 | Near Threatened | A2c+3c+4c;B1ab(i,ii,iii,iv,v) |
| 2012 | Near Threatened | A2c+3c+4c;B1ab(i,ii,iii,iv,v) |
| 2008 | Near Threatened | A2c; A3c; A4c; B1a+b(i,ii,iii,iv,v) |
| 2004 | Near Threatened | |
| 2000 | Lower Risk/Near Threatened | |
| 1994 | Lower Risk/Near Threatened | |
| 1988 | Threatened |
| Migratory status | altitudinal migrant | Forest dependency | medium |
| Land-mass type |
continent |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 96,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | stable | poor | suspected | - |
| Generation length | 2.03 years | - | - | - |
| Number of subpopulations | 4-100 | - | - | - |
| Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
Population justification: The global population size has not been quantified, but this species is described as uncommon to locally common (Heynen and Boesman 2020). It is frequently recorded (eBird 2022).
Trend justification: The population trend has not been investigated. Tree cover within the range is lost at a rate of <2% over ten years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). While the species shows a preference for forest borders, it readily tolerates open and disturbed habitats (Heynen and Boesman 2020); consequently, the current rate of tree cover loss may not be affecting the population. Therefore, in the absence of evidence for any declines or substantial threats, the population is suspected to be stable.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Colombia | extant | native | yes | |||
| Ecuador | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Colombia | Alto Quindío |
| Colombia | Bosques del Oriente de Risaralda |
| Colombia | Cuenca del Río Toche |
| Colombia | Finca Paraguay |
| Colombia | Lago Cumbal |
| Colombia | Lagunas Bombona y Vancouver |
| Colombia | Páramos y Bosques Altoandinos de Génova |
| Colombia | Puracé Natural National Park |
| Colombia | Reserva Natural Ibanasca |
| Colombia | Reserva Natural Semillas de Agua |
| Colombia | Reservas Comunitarias de Roncesvalles |
| Ecuador | El Ángel - Cerro Golondrinas and surrounding areas |
| Ecuador | Estación Biológica Guandera-Cerro Mongus |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Pastureland | suitable | resident |
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Shrubland | Subtropical/Tropical High Altitude | suitable | resident |
| Altitude | 2500 - 3600 m | Occasional altitudinal limits | 1800 - 4790 m |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Agro-industry farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Recommended citation
BirdLife International (2024) Species factsheet: Black-thighed Puffleg Eriocnemis derbyi. Downloaded from
https://datazone.birdlife.org/species/factsheet/black-thighed-puffleg-eriocnemis-derbyi on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/12/2024.