Warbling Vireo (Vireo gilvus) | Details

Warbling Vireo Vireo gilvus

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.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2021	Least Concern
2016	Least Concern
2012	Least Concern
2009	Least Concern
2008	Least Concern
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Species attributes

Migratory status	full migrant	Forest dependency	high
Land-mass type		Average mass	12 g

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	16,700,000 km²	medium
Extent of Occurrence (non-breeding)	1,330,000 km²	medium
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	53000000 mature individuals	poor	inferred	2019
Population trend	increasing	-	inferred	-
Generation length	2.57 years	-	-	-

Population justification: The global population is inferred to number 53 million mature individuals (Partners in Flight 2019).

Trend justification: The species is increasing at an average rate of 0.9% per year (Partners in Flight 2019). Short-term trends suggest that the population in North America has increased by 6% over the past ten years (Pardieck et al. 2018).

Country/territory distribution

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Canada	extant	native		yes
Costa Rica	extant	vagrant			yes
Cuba	extant	vagrant
El Salvador	extant	native			yes
Guatemala	extant	native			yes
Honduras	extant	native			yes
Mexico	extant	native	yes	yes	yes	yes
Nicaragua	extant	native			yes
Panama	extant	vagrant			yes
USA	extant	native		yes		yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Boreal	suitable	breeding
Forest	Subtropical/Tropical Moist Lowland	suitable	non-breeding
Forest	Subtropical/Tropical Moist Montane	major	non-breeding
Forest	Temperate	major	breeding
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	major	breeding
Altitude	1100 - 3000 m	Occasional altitudinal limits

Recommended citation
BirdLife International (2025) Species factsheet: Warbling Vireo Vireo gilvus. Downloaded from https://datazone.birdlife.org/species/factsheet/warbling-vireo-vireo-gilvus on 18/01/2025.
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 18/01/2025.