LC
Grey-breasted Sabrewing Campylopterus largipennis



Taxonomy

Taxonomic note
Previously recognised subspecies calcirupicola and diamantinensis (del Hoyo & Collar 2014) now regarded as full species, which see. Subspecies obscurus might also be better regarded as a full species (Lopes et al. 2017). C. l. largipennis differs from C. l. obscurus by its longer ‘LTTs’ (light tail-tips) (effect size 7.22 for male LTT1 vs the slightly longer values under ‘aequatorialis’; score 3); white vs greyish-white tail-tips (1); dark grey vs blackish-blue rest of outer rectrices (1); distinctly different call, higher-pitched and lacking the rolling ‘r’ tone in obscurus (at least 2). Subspecies aequatorialis regarded as a synonym of obscurus. Two subspecies recognized.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2021. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip.

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

Red List history
Year Category Criteria
2021 Least Concern
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 7,860,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 3000000-13000000 medium suspected 2021
Population trend Decreasing inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) 1-9 - - -
Decline (10 years/3 generation past and future) 1-9 - - -
Number of subpopulations - - -
Percentage in largest subpopulation 1-89 - - -

Population justification: The global population size has not been estimated directly, but this species is described as uncommon to locally very common (Abrahamczyk and Kessler 2010). Recorded population densities include 2 individuals per km2 in Peru (Terborgh et al. 1990), 7.2-13.9 individuals per km2 in French Guiana (Thiollay 1986), and 18.4 individuals per km2 in primary forest and 7.2-8.8 individuals per km2 in logged forest, both also in French Guiana (Thiollay 1992). Based on the minimum and first quartile of these densities, the estimated area of forest with at least 30% canopy cover within the range in 2010 (611,000,000 km2; Global Forest Watch 2021), and assuming forest to be 10-40% occupied, the population size is tentatively suspected to fall within the range 4,000,000 - 20,000,000 individuals, roughly equating to 3,000,000 - 13,000,000 mature individuals. Given that the species has multiple supspecies, it can be deduced that there are multiple subpopulations.

Trend justification:

Remote sensing data on tree cover loss indicates that approximately 4% of tree cover with at least 30% canopy cover was lost from within the species's range over ten years to 2020 (Global Forest Watch 2021). Based on the rate of tree cover loss over the period 2016-2020 (Global Forest Watch 2021), it is projected that 6% tree cover may be lost from the species's range over the next decade. Although the species favours forest edges, it is assumed that deforestation will eventually impact on the species's population size, and so it is inferred to be declining slowly, at a rate suspected to be less than 10% per decade.


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Bolivia N Extant Yes
Brazil N Extant Yes
Colombia N Extant Yes
Ecuador N Extant Yes
French Guiana N Extant Yes
Guyana N Extant Yes
Peru N Extant Yes
Suriname N Extant Yes
Venezuela N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Artificial/Terrestrial Subtropical/Tropical Heavily Degraded Former Forest suitable resident
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane suitable resident
Altitude 100 - 400 m Occasional altitudinal limits 0 - 1600 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 Declines Medium Impact: 6
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 Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Ecosystem degradation, Ecosystem conversion
Energy production & mining Renewable energy Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
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 (2022) Species factsheet: Campylopterus largipennis. Downloaded from http://www.birdlife.org on 04/10/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 04/10/2022.