Townsend's Warbler (Setophaga townsendi) - BirdLife species factsheet

Townsend's Warbler Setophaga townsendi

Current view: Data table and detailed info

Taxonomy

Taxonomic note
Setophaga townsendi (del Hoyo and Collar 2016) was previously placed in the genus Dendroica following AOU (1998 & supplements); Sibley & Monroe (1990, 1993); Stotz et al. (1996).

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. 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)	3,660,000	medium
Extent of Occurrence non-breeding (km2)	4,130,000	medium
Number of locations		-
Fragmentation		-

Population and trend

	Estimate	Data quality	Derivation	Year of estimate
No. of mature individuals		poor	estimated	2009
Population trend	Stable		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)	3.4	-	-	-

Trend justification: This species has had stable population trends 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	Breeding	Non-breeding
Bahamas	V	Extant
Canada	N	Extant
Colombia	N	Extant
Costa Rica	N	Extant		Yes
El Salvador	N	Extant
Guatemala	N	Extant
Honduras	N	Extant
Mexico	N	Extant
Nicaragua	N	Extant		Yes
Panama	V	Extant
Turks and Caicos Islands (to UK)	V	Extant
USA	N	Extant	Yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	non-breeding
Forest	Temperate	major	breeding
Altitude		Occasional altitudinal limits

Recommended citation
BirdLife International (2019) Species factsheet: Setophaga townsendi. Downloaded from http://www.birdlife.org on 19/04/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 19/04/2019.