Vilcabamba Thistletail (Asthenes vilcabambae)

Vilcabamba Thistletail Asthenes vilcabambae

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Asthenes vilcabambae and A. ayacuchensis (del Hoyo and Collar 2016) were previously lumped as A. vilcabambae following SACC (2005 & updates), Sibley & Monroe (1990, 1993) and Stotz et al. (1996).

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red list criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2016	Least Concern

Species attributes

Migratory status	not a migrant	Forest dependency	Medium
Land mass type		Average mass	20 g

Distribution

	Estimate	Data quality
Extent of Occurrence breeding/resident (km2)	13,900
Number of locations		-
Severely Fragmented		-

Population and trend

	Value	Data quality	Derivation	Year of estimate
No. of mature individuals	unknown	not applicable	not applicable	0
Population trend	Stable		suspected	-
Decline (3 years/1 generation past)		-	-	-
Decline (5 years/1 generation past)		-	-	-
Decline (10 years/1 generation past)		-	-	-
Decline (10 years/3 generation future)		-	-	-
Decline (10 years/3 generation past and future)		-	-	-
Number of subpopulations		-	-	-
Percentage in largest subpopulation		-	-	-
Generation length (yrs)	3.8	-	-	-

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

Trend justification: This population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Country/territory distribution

Country/Territory	Occurrence status	Presence	Resident	Breeding	Non-breeding	Passage
Peru	N	Extant	Yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Peru	Cordillera Vilcabamba

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Grassland	Subtropical/Tropical High Altitude	major	resident
Shrubland	Subtropical/Tropical High Altitude	suitable	resident
Altitude	2800 - 3600 m	Occasional altitudinal limits	(min) 2500 m

Recommended citation
BirdLife International (2023) Species factsheet: Asthenes vilcabambae. Downloaded from http://www.birdlife.org on 28/03/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 28/03/2023.