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: #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
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 -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 11,900,000 medium
Extent of Occurrence non-breeding (km2) 4,870,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals 59000000 poor estimated 2016
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) 25 - - -
Decline (10 years/3 generation past and future) 25 - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 3.5 - - -

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

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Bahamas Harrold and Wilson Ponds National Park
Bahamas Grog Pond
St Lucia Point Sables
St Lucia Iyanola and Grande Anses, Esperance and Fond D'ors
Virgin Islands (to USA) Great Pond
Virgin Islands (to USA) Southgate and Green Cay
Colombia El Encanto de Guanapalo
Colombia La Victoria (Caldas)
Colombia La Aurora
Colombia Cerro La Judía
Colombia Parque Nacional Natural Amacayacu
Colombia Parque Nacional Natural Chiribiquete
Colombia Parque Nacional Natural Macuira
Colombia Bojonawi

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 (2022) Species factsheet: Setophaga striata. Downloaded from http://www.birdlife.org on 30/09/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 30/09/2022.