LC
Wood Duck Aix sponsa



Taxonomy

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. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2021 Least Concern
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) 15,500,000 km2 medium
Extent of Occurrence (non-breeding) 11,200,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 4600000 mature individuals poor inferred 2019
Population trend increasing - inferred -
Generation length 5.5 years - - -

Population justification: The global population is inferred to number 4,600,000 mature individuals and is believed to be increasing overall (Partners in Flight 2019, Waterbird Population Estimates 2020).

Trend justification: The overall population trend is increasing, although some populations may be stable and others have unknown trends (Partners in Flight 2019; Wetlands International 2020).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Bahamas extant native yes
Bermuda (to UK) extant vagrant
Canada extant native yes yes
Cuba extant native yes
Denmark extant vagrant
Guadeloupe (to France) extant vagrant
Iceland extant vagrant
Mexico extant native yes yes
Portugal extant vagrant
Puerto Rico (to USA) extant vagrant
Spain extant vagrant
St Kitts and Nevis extant vagrant
St Pierre and Miquelon (to France) extant native yes
Turks and Caicos Islands (to UK) extant vagrant
USA extant native yes yes yes yes

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

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Temperate major non-breeding
Forest Temperate major breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable non-breeding
Wetlands (inland) Bogs, Marshes, Swamps, Fens, Peatlands suitable breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major non-breeding
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable non-breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Altitude 0 - 900 m Occasional altitudinal limits  

Utilisation
Purpose Scale
Pets/display animals, horticulture international
Sport hunting/specimen collecting subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: Wood Duck Aix sponsa. Downloaded from https://datazone.birdlife.org/species/factsheet/wood-duck-aix-sponsa on 22/11/2024.
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 22/11/2024.