Tawny-faced Gnatwren (Microbates cinereiventris) | Details

Tawny-faced Gnatwren Microbates cinereiventris

Current view: Data table and detailed info

Taxonomy

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.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://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
2022	Least Concern
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Least Concern
2000	Lower Risk/Least Concern
1994	Lower Risk/Least Concern
1988	Lower Risk/Least Concern

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,570,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	500000-4999999 mature individuals	poor	suspected	2022
Population trend	decreasing	-	suspected	2016-2026
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	2.58 years	-	-	-

Population justification: The global population is suspected to number 500,000-4,999,999 mature individuals (Partners in Flight 2022). The species is described as 'fairly common' (Stotz et al. 1996).

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 2021, using Hansen et al. [2013] data and methods disclosed therein). The species is restricted to dense, humid forests (Atwood et al. 2020); consequently, population declines may be steeper than the rate of tree cover loss suggests. Tentatively, population declines are here placed in the band 1-9% over ten years.

Country/territory distribution

Country/Territory	Presence	Origin	Resident
Bolivia	extant	native	yes
Colombia	extant	native	yes
Costa Rica	extant	native	yes
Ecuador	extant	native	yes
French Guiana	extant	native	yes
Guyana	extant	native	yes
Nicaragua	extant	native	yes
Panama	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
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	0 - 750 m	Occasional altitudinal limits	(max) 1300 m

Recommended citation
BirdLife International (2024) Species factsheet: Tawny-faced Gnatwren Microbates cinereiventris. Downloaded from https://datazone.birdlife.org/species/factsheet/tawny-faced-gnatwren-microbates-cinereiventris on 21/12/2024.
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 21/12/2024.