Data Zone
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| 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 |
| Migratory status | full migrant | Forest dependency | Medium |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 15,500,000 | medium |
| Extent of Occurrence non-breeding (km2) | 11,200,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 4600000 | poor | inferred | 2019 |
| Population trend | Increasing | inferred | - | |
| 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 | - | - | - | |
| Percentage in largest subpopulation | - | - | - | |
| Generation length (yrs) | 5.5 | - | - | - |
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 | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Bahamas | N | Extant | Yes | |||
| Bermuda (to UK) | V | Extant | ||||
| Canada | N | Extant | Yes | Yes | ||
| Cuba | N | Extant | Yes | |||
| Denmark | V | Extant | ||||
| Guadeloupe (to France) | V | Extant | ||||
| Iceland | V | Extant | ||||
| Mexico | N | Extant | Yes | Yes | ||
| Portugal | V | Extant | ||||
| Puerto Rico (to USA) | V | Extant | ||||
| Spain | V | Extant | ||||
| St Kitts and Nevis | V | Extant | ||||
| St Pierre and Miquelon (to France) | N | Extant | Yes | |||
| Turks and Caicos Islands (to UK) | V | Extant | ||||
| USA | N | Extant | Yes | Yes | Yes | Yes |
| Country/Territory | IBA Name |
|---|---|
| Canada | Marais de Saint-Timothée |
| 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 |
| Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
|---|---|---|---|---|---|---|
| Pets/display animals, horticulture | - | - | International | Non-trivial | Recent | |
| Sport hunting/specimen collecting | - | - | Non-trivial | Recent |
Recommended citation
BirdLife International (2023) Species factsheet: Aix sponsa. Downloaded from
http://www.birdlife.org on 03/02/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 03/02/2023.
