NT
Plumbeous Hawk Cryptoleucopteryx plumbea



Taxonomy

Taxonomic note
Cryptoleucopteryx plumbea (del Hoyo and Collar 2014) was previously placed in the genus Leucopternis as L. plumbeus.

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: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2020 Near Threatened C2a(ii)
2016 Vulnerable A2c+3c+4c
2014 Vulnerable A2c+3c+4c
2012 Near Threatened C1+2a(i)
2008 Near Threatened C1; C2a(i)
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Threatened
Species attributes

Migratory status not a migrant Forest dependency medium
Land-mass type continent
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 517,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 10000-19999 mature individuals poor estimated 2014
Population trend decreasing - suspected 2007-2024
Rate of change over the past 10 years/3 generations (longer of the two periods) 1-9% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 1-9% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 1-9% - - -
Generation length 5.8 years - - -
Number of subpopulations 1 - - -
Percentage of mature individuals in largest subpopulation 100% - - -

Population justification: The population size has not been quantified directly. In Colombia, the population is estimated at just over 10,000 mature individuals, forming one subpopulation (Renjifo et al. 2014). The global population is therefore preliminarily placed in the band 10,000-19,999 mature individuals. The species is described as 'uncommon' (Stotz et al. 1996).

Trend justification: The species is threatened by the loss of forests for agricultural expansion, timber extraction and mining (M. Sanchez in litt. 2013). Over the past three generations (17.4 years), 4% of forest has been lost within the range (Global Forest Watch 2020). While the species’s tolerance of degraded habitats indicates that the population may not be severely impacted by habitat loss, its preference of forest interiors for hunting of prey suggests otherwise. Precautionarily, it is suspected that the rate of population decline is faster than the rate of forest loss, amounting to up to 10% over three generations.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Colombia extant native yes
Ecuador extant native yes
Panama extant native yes
Peru possibly extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Colombia Parque Nacional Natural Ensenada de Utría
Ecuador Cayapas-Santiago-Wimbí
Ecuador Corredor Awacachi
Ecuador Maquipucuna-Río Guayllabamba
Ecuador Mataje-Cayapas-Santiago
Ecuador Reserva Ecológica Cotacachi-Cayapas
Ecuador Mache Chindul Ecological Reserve and surrouding areas (Reserva Ecológica Mache-Chindul IBA)
Ecuador Tonchigüe-Mompiche
Ecuador Verde-Ónzole-Cayapas-Canandé
Panama Golfo de los Mosquitos Forests
Panama Chagres National Park
Panama Narganá Wildlands Area
Panama Darién National Park
Colombia Serranía de San Lucas

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 - 800 m Occasional altitudinal limits  

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 Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Annual & perennial non-timber crops - Small-holder farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets/display animals, horticulture - - international non-trivial recent

Recommended citation
BirdLife International (2024) Species factsheet: Cryptoleucopteryx plumbea. Downloaded from https://datazone.birdlife.org/species/factsheet/plumbeous-hawk-cryptoleucopteryx-plumbea on 26/02/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org on 26/02/2024.