Chiriqui Foliage-gleaner (Automolus exsertus) | Details

Chiriqui Foliage-gleaner Automolus exsertus

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Automolus ochrolaemus, A. exsertus and A. cervinigularis were previously lumped as A. ochrolaemus (del Hoyo and Collar 2016), but are split on the basis of genetic divergence (Smith et al. 2014, Schultz et al. 2017) and differences in vocalisations, confirmed by playback experiments (Freeman and Montgomery 2017). Monotypic.

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2023. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 8. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v8_Dec23.zip.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2023	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	does not normally occur in forest
Land-mass type		Average mass	-

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	23,100 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	20000-49999 mature individuals	poor	suspected	2023
Population trend	stable	-	suspected	-
Generation length	3.14 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population has not been quantified, but the species is described as fairly common to common (Remsen Jr. and Greeney 2020), with observational records frequent across the range (eBird 2023). It is suspected to number less than 50,000 mature individuals (Partners in Flight 2022); therefore it is here tentatively placed in the band 20,000-49,999 mature individuals.

Trend justification:

The population trend has not been investigated. Tree cover within the range is lost at a rate of 4% over ten years (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). Apart from forests, the species is also found in secondary growth, plantations and fragmented forest (Remsen Jr. and Greeney 2020); consequently, the current rate of tree cover loss may not be affecting the population. Therefore, in the absence of evidence for any declines or substantial threats, the population is suspected to be stable.

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Costa Rica	extant	native	yes
Panama	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	Plantations	suitable	resident
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Moist Montane	suitable	resident
Altitude	0 - 1400 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2025) Species factsheet: Chiriqui Foliage-gleaner Automolus exsertus. Downloaded from https://datazone.birdlife.org/species/factsheet/chiriqui-foliage-gleaner-automolus-exsertus on 15/01/2025.
Recommended citation for factsheets for more than one species: BirdLife International (2025) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 15/01/2025.