LC
Black-and-white Warbler Mniotilta varia



Taxonomy

Taxonomic note

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 11 g
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 11,500,000 medium
Extent of Occurrence non-breeding (km2) 14,900,000 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) 4.6 - - -

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
Bolivia N Extant
Bonaire, Sint Eustatius and Saba (to Netherlands) N Extant
Canada N Extant 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 N Extant
El Salvador N Extant
Faroe Islands (to Denmark) V Extant
Guadeloupe (to France) N Extant Yes
Guatemala N Extant
Haiti N Extant
Honduras N Extant
Ireland V Extant
Jamaica N Extant Yes
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
Sint Maarten (to Netherlands) N Extant
St Barthelemy (to France) N Extant
St Kitts and Nevis N Extant
St Lucia N Extant
St Martin (to France) N Extant Yes
St Pierre and Miquelon (to France) N Extant Yes Yes
St Vincent and the Grenadines N Extant
Trinidad and Tobago N Extant
Turks and Caicos Islands (to UK) N Extant
United Kingdom V Extant
United States Minor Outlying Islands (to USA) 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
Jamaica Yallahs
Jamaica Mount Diablo
Jamaica Rose Hall
Bahamas Harrold and Wilson Ponds National Park
Bahamas South Tarpum Bay
Bahamas Governor's Harbour
Bahamas Long Island and Hog Cay
Canada Point Abino
Bahamas Booby Rocks and Pirates Bay
Bahamas Nine Tasks Blue Hole
Bahamas Driggs Hill to Mars Bay
Puerto Rico (to USA) El Yunque
Puerto Rico (to USA) Karso del Sur
Bahamas Mangrove Cay
Virgin Islands (to USA) Perseverance Bay Lagoons
St Lucia Point Sables
St Lucia Iyanola and Grande Anses, Esperance and Fond D'ors
Cuba Alejandro de Humboldt
Bahamas Cat Island Wetlands
Mexico Presa de Valsequillo

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Boreal major breeding
Forest Subtropical/Tropical Dry suitable non-breeding
Forest Subtropical/Tropical Moist Lowland suitable non-breeding
Forest Subtropical/Tropical Moist Montane suitable non-breeding
Forest Temperate major breeding
Shrubland Subtropical/Tropical Dry suitable non-breeding
Shrubland Subtropical/Tropical High Altitude suitable non-breeding
Shrubland Subtropical/Tropical Moist suitable non-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 Unknown
Stresses
Reduced reproductive success

Recommended citation
BirdLife International (2020) Species factsheet: Mniotilta varia. Downloaded from http://www.birdlife.org on 23/10/2020. Recommended citation for factsheets for more than one species: BirdLife International (2020) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/10/2020.