NT
Blackpoll Warbler Setophaga striata



Taxonomy

Taxonomic note

Setophaga striata (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.
Cramp, S. and Simmons, K.E.L. (eds). 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. 2005 and updates. A classification of the bird species of South America. Available at: https://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
2018 Near Threatened A2ac+3c+4ac
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 -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 11,900,000 km2 medium
Extent of Occurrence (non-breeding) 4,870,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 59000000 mature individuals poor estimated 2016
Population trend decreasing - estimated 2012-2023
Rate of change over the past 10 years/3 generations (longer of the two periods) 25% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 25% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 25% - - -
Generation length 3.5 years - - -

Population justification: The population is estimated at around 59,000,000 mature individuals, equating roughly to 88,500,000 individuals in total (Rosenberg et al. 2016). The species is described as one of the most common birds in the breeding range in northern North America (Curson 2018). Density estimates vary between 1.5 pairs/10 ha in mountainous areas and  more than 40 pairs/10 ha in subalpine valleys in the northeastern part of the range (DeLuca et al. 2013). Usually, densities are higher in mature, deciduous forests than in conifer stands or younger plantations. There are no density estimates for the non-breeding range.

Trend justification: This species has been undergoing a statistically significant population crash since 1970 (Ralston et al. 2015). Partners in Flight estimates that while the 46 steeply declining North American landbirds may have lost a combined 1.5 billion individuals since 1970, nearly half of these individuals have been Blackpoll Warblers (Rosenberg et al. 2016). This equates to a reduction of 92% between 1970 and 2014. However, a significant data deficiency due to the remoteness of its breeding range makes the rate of decline is difficult to determine: Estimates range from 20.9% over three generations (10.5 years) (North American Breeding Bird Survey; Sauer et al. 2017) to 45.3% over three generations (Partners in Flight Landbird Conservation Plan; Rosenberg et al. 2016). It has to be noted that both estimates yield large confidence intervals due to data deficiency, indicating large uncertainties over the rate of decline.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Anguilla (to UK) extant native
Antigua and Barbuda extant native
Argentina extant native
Aruba (to Netherlands) extant native
Bahamas extant native
Barbados extant native
Belize extant vagrant
Bermuda (to UK) extant native
Bolivia extant vagrant
Brazil extant native
Canada extant native
Cayman Islands (to UK) extant native
Chile extant native
Colombia extant native
Costa Rica extant native yes
Cuba extant native
Dominica extant native
Dominican Republic extant native
Ecuador extant native
France extant vagrant
French Guiana extant native
French Polynesia extant vagrant
Greenland (to Denmark) extant vagrant
Grenada extant native
Guadeloupe (to France) extant native yes
Guyana extant native
Haiti extant native
Ireland extant vagrant
Jamaica extant vagrant
Martinique (to France) extant native
Mexico extant native
Montserrat (to UK) extant native
Nicaragua extant native yes
Panama extant native
Peru extant native
Puerto Rico (to USA) extant native
St Barthelemy (to France) extant native
St Kitts and Nevis extant native
St Lucia extant native
St Pierre and Miquelon (to France) extant native yes yes
St Vincent and the Grenadines extant native
Suriname extant native
Trinidad and Tobago extant native
Turks and Caicos Islands (to UK) extant native
United Kingdom extant vagrant
Uruguay extant native yes
USA extant native yes
Venezuela extant native
Virgin Islands (to UK) extant native yes
Virgin Islands (to USA) extant native yes

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

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Boreal major breeding
Forest Subtropical/Tropical Moist Lowland major non-breeding
Forest Temperate suitable breeding
Shrubland Boreal suitable breeding
Altitude 600 - 3000 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Ongoing Majority (50-90%) Unknown Unknown
Stresses
Ecosystem conversion
Energy production & mining Renewable energy Timing Scope Severity Impact
Ongoing Minority (<50%) Negligible declines Low Impact: 4
Stresses
Species disturbance, Species mortality

Recommended citation
BirdLife International (2024) Species factsheet: Blackpoll Warbler Setophaga striata. Downloaded from https://datazone.birdlife.org/species/factsheet/blackpoll-warbler-setophaga-striata on 24/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 24/11/2024.