LC
Warbling Vireo Vireo gilvus



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
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 16,700,000 medium
Extent of Occurrence non-breeding (km2) 1,330,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 53000000 poor inferred 2019
Population trend Increasing inferred -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -

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 Occurrence status Presence Resident Breeding Non-breeding Passage
Canada N Extant Yes
Costa Rica V Extant Yes
Cuba V Extant
El Salvador N Extant Yes
Guatemala N Extant Yes
Honduras N Extant Yes
Mexico N Extant Yes Yes Yes Yes
Nicaragua N Extant Yes
Panama V Extant Yes
USA N Extant 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 (2022) Species factsheet: Vireo gilvus. Downloaded from http://www.birdlife.org on 01/07/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 01/07/2022.