Olive-faced Flatbill (Tolmomyias viridiceps) | Details

Olive-faced Flatbill Tolmomyias viridiceps

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Tolmomyias flaviventris and T. viridiceps (del Hoyo and Collar 2016) were previously lumped as T. falviventris (see 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
2023	Least Concern
2016	Least Concern
2012	Not Recognised
2008	Not Recognised
2006	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

Migratory status	not a migrant	Forest dependency	low
Land-mass type		Average mass	12 g

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	2,830,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	stable	-	suspected	-
Generation length	2.75 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

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

Trend justification:

The population trend has not been investigated. Tree cover within the range has been lost at a rate of 3% over ten years (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). The species however occurs in a variety of forested and degraded habitats (del Hoyo et al. 2022); 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
Bolivia	extant	native	yes
Brazil	extant	native	yes
Colombia	extant	native	yes
Ecuador	extant	native	yes
Peru	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	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Dry	major	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Swamp	suitable	resident
Altitude	0 - 1100 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Olive-faced Flatbill Tolmomyias viridiceps. Downloaded from https://datazone.birdlife.org/species/factsheet/olive-faced-flatbill-tolmomyias-viridiceps 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.