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 |
---|---|---|
- | - | C2a(ii) |
Year | Category | Criteria |
---|---|---|
2023 | Vulnerable | C2a(ii) |
2016 | Vulnerable | A2c+3c+4c |
2012 | Vulnerable | A2c+3c+4c |
2008 | Vulnerable | A2c; A3c; A4c |
2004 | Vulnerable | |
2000 | Vulnerable | |
1996 | Endangered | |
1994 | Endangered | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | high |
Land-mass type |
continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 42,800 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 3600-5000 mature individuals | medium | estimated | 2023 |
Population trend | decreasing | poor | inferred | 2015-2033 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
Generation length | 6.07 years | - | - | - |
Number of subpopulations | 1 | - | - | - |
Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: The species is described as rare and local. Assuming that densities observed in Colombia (1 individual/km2; Renjifo et al. 2014 and references therein) are representative for the entire range, and further assuming that 50% of forests in the range are occupied to account for the species' strict requirements for undisturbed forest interior (i.e., 5,500-7,500 km2; Global Forest Watch 2023), the total population may number 5,500-7,500 individuals. This equates to 3,600-5,000 mature individuals. However, given that the species is described as easily overlooked (Bierregaard et al. 2020), the population size may be larger and an accurate quantification is urgently required.
Trend justification: Population declines are believed to be ongoing because of accelerating habitat loss, degradation and fragmentation, and may be further aggravated by the impacts of agrochemicals and pesticides (Renjifo et al. 2014, Bierregaard et al. 2020). Observational records appear to have become rarer over the past ten years, particularly in the southern part of the range in Ecuador (per eBird 2023).
Over three generations (18.2 years), up to 7% of tree cover are lost within the range (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). This value however does not account for the impacts of habitat degradation nor of pesticide use. Total population declines are therefore here tentatively placed in the band 10-19% over three generations. This is confirmed by an analysis of overall habitat loss in the Colombian part of the range, which predict a rate of decline of 13% over the three generations from 2015 onward (Negret et al. 2021).
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 | Munchique Natural National Park and southern extension |
Colombia | Reserva Natural El Pangán |
Colombia | Reserva Natural Río Ñambí |
Ecuador | Cayapas-Santiago-Wimbí |
Ecuador | Corredor Awacachi |
Ecuador | Los Bancos - Milpe |
Ecuador | Mache Chindul Ecological Reserve and surrouding areas (Reserva Ecológica Mache-Chindul IBA) |
Ecuador | Mashpi-Pachijal |
Ecuador | Reserva Ecológica Cotacachi-Cayapas |
Ecuador | Territorio Étnico Awá y alrededores |
Ecuador | Verde-Ónzole-Cayapas-Canandé |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Moist Lowland | major | resident |
Forest | Subtropical/Tropical Moist Montane | major | resident |
Altitude | 0 - 1780 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 | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Agriculture & aquaculture | Wood & pulp plantations - Agro-industry plantations | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Agriculture & aquaculture | Wood & pulp plantations - Small-holder plantations | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Energy production & mining | Mining & quarrying | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Pollution | Agricultural & forestry effluents - Herbicides and pesticides | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Unknown | Unknown | ||||||
|
|||||||||
Transportation & service corridors | Roads & railroads | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Recommended citation
BirdLife International (2024) Species factsheet: Plumbeous Forest-falcon Micrastur plumbeus. Downloaded from
https://datazone.birdlife.org/species/factsheet/plumbeous-forest-falcon-micrastur-plumbeus 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.