Data Zone
Taxonomic note
Sometimes placed in genus Nettion. Thought to be close to A. chlorotis, A. aucklandica and A. nesiotis. Hybridization with A. gracilis recorded. Monotypic.
Taxonomic source(s)
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 |
|---|---|---|
| 2024 | 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 | not a migrant | Forest dependency | low |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 7,430,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 70000 mature individuals | poor | estimated | 2024 |
| Population trend | unknown | - | suspected | - |
| Generation length | 6.2 years | - | - | - |
Population justification: The population is estimated to number 105,000 individuals, roughly equating to 70,000 mature individuals. The overall population trend is not known (Wetlands International 2023).
Trend justification: The overall population trend is stable, although some populations have unknown trends (Wetlands International 2006).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Australia | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Australia | Bellarine Wetlands |
| Australia | Cape Portland |
| Australia | Carrum Wetlands |
| Australia | Cheetham and Altona |
| Australia | Coorong |
| Australia | Corner Inlet |
| Australia | Eastern Flinders Island |
| Australia | Gippsland Lakes |
| Australia | Hunter Estuary |
| Australia | Kangaroo Island |
| Australia | Lake Corangamite Complex |
| Australia | Lake Wollumboola |
| Australia | Swan Bay and Port Phillip Bay Islands |
| Australia | Tamar Wetlands |
| Australia | Tuggerah |
| Australia | Werribee and Avalon |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
| Marine Coastal/Supratidal | Coastal Brackish/Saline Lagoons/Marine Lakes | suitable | resident |
| Marine Coastal/Supratidal | Coastal Freshwater Lakes | suitable | resident |
| Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | suitable | resident |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | resident |
| Wetlands (inland) | Permanent Freshwater Marshes/Pools (under 8ha) | suitable | resident |
| Wetlands (inland) | Permanent Rivers/Streams/Creeks (includes waterfalls) | suitable | resident |
| Wetlands (inland) | Seasonal/Intermittent Freshwater Lakes (over 8ha) | suitable | resident |
| Wetlands (inland) | Seasonal/Intermittent Freshwater Marshes/Pools (under 8ha) | suitable | resident |
| Altitude | 0 - 1100 m | Occasional altitudinal limits |
| Purpose | Scale |
|---|---|
| Food - human | subsistence, national |
| Pets/display animals, horticulture | international |
| Sport hunting/specimen collecting | subsistence, national |
Recommended citation
BirdLife International (2024) Species factsheet: Chestnut Teal Anas castanea. Downloaded from
https://datazone.birdlife.org/species/factsheet/chestnut-teal-anas-castanea on 18/12/2024.
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 18/12/2024.