LC
Black-throated Green Warbler Setophaga virens



Taxonomy

Taxonomic note
Setophaga virens (del Hoyo and Collar 2016) was previously placed in the genus Dendroica following AERC TAC (2003); AOU (1998 & supplements); Cramp et al. (1977-1994); SACC (2005 & updates); Sibley & Monroe (1990, 1993); Stotz et al. (1996).

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls#.
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: #http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls#.
Cramp, S. and Perrins, C.M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
Cramp, S.; Perrins, C. M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
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. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. 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
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 Medium
Land mass type Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 7,970,000 medium
Extent of Occurrence non-breeding (km2) 6,820,000 medium
Number of locations -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals poor estimated 2009
Population trend Decreasing estimated -
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 - - -
Largest subpopulations - - -
Generation length (yrs) 3.6 - - -

Trend justification: This species has undergone a small or statistically insignificant decrease over the last 40 years in North America (data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Anguilla (to UK) N Extant
Antigua and Barbuda N Extant
Aruba (to Netherlands) N Extant
Bahamas N Extant
Barbados N Extant
Belize N Extant Yes
Bermuda (to UK) N Extant
Bonaire, Sint Eustatius and Saba (to Netherlands) N Extant
Canada N Extant Yes Yes
Cayman Islands (to UK) N Extant
Colombia N Extant
Costa Rica N Extant Yes
Cuba N Extant
Curaçao (to Netherlands) N Extant
Dominica N Extant
Dominican Republic N Extant
Ecuador V Extant
El Salvador N Extant
Germany V Extant
Greenland (to Denmark) V Extant
Guadeloupe (to France) V Extant Yes
Guatemala N Extant
Haiti N Extant
Honduras N Extant
Iceland V Extant
Jamaica N Extant
Martinique (to France) N Extant
Mexico N Extant
Montserrat (to UK) N Extant
Nicaragua N Extant Yes
Panama N Extant
Puerto Rico (to USA) N Extant
Sint Maarten (to Netherlands) V Extant Yes
St Kitts and Nevis N Extant
St Lucia N Extant
St Martin (to France) V Extant Yes
St Pierre and Miquelon (to France) N Extant Yes
St Vincent and the Grenadines N Extant
Trinidad and Tobago N Extant
Turks and Caicos Islands (to UK) N Extant
United States Minor Outlying Islands (to USA) N Extant Yes
USA N Extant Yes
Venezuela N Extant
Virgin Islands (to UK) V Extant
Virgin Islands (to USA) V Extant

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

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland suitable non-breeding
Forest Subtropical/Tropical Moist Montane suitable non-breeding
Forest Temperate major breeding
Wetlands (inland) Shrub Dominated Wetlands suitable breeding
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Other impacts Timing Scope Severity Impact
Ongoing Unknown Unknown
Stresses
Reduced reproductive success

Utilisation
Purpose Primary form used Life stage used Source Scale Level Timing
Pets Whole Adults and juveniles Wild International Non-trivial Recent

Recommended citation
BirdLife International (2017) Species factsheet: Setophaga virens. Downloaded from http://www.birdlife.org on 23/10/2017. Recommended citation for factsheets for more than one species: BirdLife International (2017) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/10/2017.