Venezuelan Tyrannulet (Zimmerius petersi) | Details

Venezuelan Tyrannulet Zimmerius petersi

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Zimmerius improbus and Z. petersi (del Hoyo and Collar 2016) were previously lumped as Z. improbus following Sibley & Monroe (1990, 1993).

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
2024	Least Concern
2016	Least Concern
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	high
Land-mass type		Average mass	-

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	29,300 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	stable	-	suspected	-
Generation length	2.82 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The global population size has not been quantified, but the species is described as common (Jones 2020).

Trend justification: The population trend has not been investigated. Tree cover loss is overall low within the range (2-4% over ten years; Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein) and the species is tolerant to a certain level of habitat disturbance and degradation (Jones 2020); consequently, the current rate of tree cover loss may not be impacting 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
Venezuela	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Venezuela	Henri Pittier National Park (Parque Nacional Henri Pittier IBA)
Venezuela	Monumento Natural Pico Codazzi
Venezuela	Palmichal
Venezuela	Parque Nacional El Ávila and surrounding areas
Venezuela	Parque Nacional Guatopo
Venezuela	Parque Nacional Macarao
Venezuela	Parque Nacional San Esteban
Venezuela	Parque Nacional Yacambú
Venezuela	Parque Nacional Yurubí

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	390 - 3000 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2024) Species factsheet: Venezuelan Tyrannulet Zimmerius petersi. Downloaded from https://datazone.birdlife.org/species/factsheet/venezuelan-tyrannulet-zimmerius-petersi on 01/12/2024.
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 01/12/2024.