LC
Blue-winged Warbler Vermivora cyanoptera



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: #http://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
2021 Least Concern
2018 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 full migrant Forest dependency does not normally occur in forest
Land-mass type Average mass 9 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 2,040,000 km2 medium
Extent of Occurrence (non-breeding) 4,500,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 680000 mature individuals poor estimated 2019
Population trend decreasing - estimated -
Rate of change over the past 10 years/3 generations (longer of the two periods) 10% - - -
Generation length 2.39 years - - -

Population justification: The global population is estimated to number 680,000 mature individuals (Partners in Flight 2019).

Trend justification: The species has been undergoing a moderate decline between 1970 and 2017, at an average rate of 1% per year (Partners in Flight 2019; Rosenberg et al. 2019). Short-term trends suggest a rate of decline of 10% over the past ten years, though this value is non-significant (Pardieck et al. 2018).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Aruba (to Netherlands) extant vagrant yes
Bahamas extant native yes
Belize extant native yes
Bermuda (to UK) extant vagrant
Canada extant native yes
Cayman Islands (to UK) extant native yes
Colombia extant vagrant yes
Costa Rica extant native yes
Cuba extant native yes
Dominican Republic extant native yes
El Salvador extant vagrant yes
Guadeloupe (to France) extant vagrant yes
Guatemala extant native yes
Haiti extant native yes
Honduras extant native yes
Ireland extant vagrant
Jamaica extant native yes
Mexico extant native yes yes
Nicaragua extant native yes
Panama extant native yes
Portugal extant vagrant
Puerto Rico (to USA) extant vagrant yes
St Pierre and Miquelon (to France) extant vagrant yes
Turks and Caicos Islands (to UK) extant native yes
USA extant native yes yes
Venezuela extant vagrant yes
Virgin Islands (to UK) extant native yes
Virgin Islands (to USA) extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Grassland Temperate major non-breeding
Grassland Temperate major breeding
Shrubland Temperate suitable non-breeding
Shrubland Temperate suitable breeding
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Vermivora cyanoptera. Downloaded from https://datazone.birdlife.org/species/factsheet/blue-winged-warbler-vermivora-cyanoptera on 19/03/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org on 19/03/2024.