Pale-tailed Barbthroat (Threnetes leucurus) | Details

Pale-tailed Barbthroat Threnetes leucurus

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Subspecies loehkeni was included in the previous concept of Threnetes leucurus (del Hoyo and Collar 2014) but has now been included in T. niger following Hinkelmann et al. (2020). Since there are several regions from which no or only a few specimens have been secured, exact limits of racial distributions not yet reliably determined. In W Amazonia, two zones of character intergradation exist between subspecies cervinicauda and rufigastra on the one hand, and rufigastra and leucurus on the other, apparent in belly and tail coloration. Five subspecies currently recognized.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2022. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 7. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v7_Dec22.zip.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Least Concern
2016	Not Recognised
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	7,000,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	2.43 years	-	-	-

Population justification: The global population size has not been quantified, but this species is described as 'uncommon' (Stotz et al. 1996).

Trend justification:

Tree cover loss is locally high within the range; however, vast areas of pristine forests remain (Global Forest Watch 2022). The species is not strictly dependent on forest, but is also found along edges, in shrubby habitat, on pastures as well as in plantations (del Hoyo et al. 2020). Nevertheless, in view of large-scale deforestation in parts of the range, the population is precautionarily suspected to be in slow decline.

Country/territory distribution

Country/Territory	Presence	Origin	Resident
Bolivia	extant	native	yes
Brazil	extant	native	yes
Colombia	extant	native	yes
Ecuador	extant	native	yes
French Guiana	extant	native	yes
Guyana	extant	native	yes
Peru	extant	native	yes
Suriname	extant	native	yes
Venezuela	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Pastureland	suitable	resident
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	major	resident
Forest	Subtropical/Tropical Swamp	suitable	resident
Shrubland	Subtropical/Tropical Moist	suitable	resident
Altitude	0 - 1600 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Pale-tailed Barbthroat Threnetes leucurus. Downloaded from https://datazone.birdlife.org/species/factsheet/pale-tailed-barbthroat-threnetes-leucurus on 27/12/2024.
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 27/12/2024.