Data Zone
Taxonomic note
Sometimes placed in genus Nettion. Usually treated (along with A. albogularis, which see for specific differentiation) as conspecific with A. gibberifrons, but recent trend to accord it species status (Kear 2005) accepted here on basis of its lack of a bulbous forehead (3); slightly darker crown contrasting more with paler face (1); slightly whiter, less marked chin and throat (1); distinct pattern of downy young, with different head pattern and anterior underparts colour (2) (Young and Brayshaw 2004). Extinct taxon †remissa of Rennell I, in S Solomons, appears to be sufficiently different from the nominate to warrant recognition. It is darker, smaller and the white stripe on the underwing coverts is vestigial. Two subspecies recognised.
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 | nomadic | Forest dependency | does not normally occur in forest |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 22,400,000 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 147000-747000 mature individuals | poor | estimated | 2023 |
| Population trend | decreasing | - | suspected | - |
| Generation length | 4.93 years | - | - | - |
Population justification: The global population size is estimated at 220,000-1,120,001 individuals (Wetlands International 2023), which equates to 147,000-747,000 mature individuals. The overall population trend is considered to be fluctuating over three generations (14.79 years) (Wetlands International 2023).
Trend justification: .
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Australia | extant | native | yes | |||
| Indonesia | extant | native | ||||
| New Caledonia (to France) | extant | native | ||||
| New Zealand | extant | native | yes | |||
| Papua New Guinea | extant | native | yes | |||
| Solomon Islands | possibly extinct | native | yes | |||
| Vanuatu | extant | native |
| Country/Territory | IBA Name |
|---|---|
| Australia | Alligator Rivers Floodplains |
| Australia | Arcoona Lakes |
| Australia | Bulloo Floodplain |
| Australia | Coongie Lakes |
| Australia | Fortescue Marshes |
| Australia | Lake Galilee |
| Australia | Lake Gregory/Paraku |
| Australia | Lake Sylvester System |
| Australia | Lakes Muncoonie, Mumbleberry and Torquinie |
| Australia | Lowbidgee Floodplain |
| Australia | Menindee Lakes |
| Australia | Paroo Floodplain and Currawinya |
| Australia | Strzelecki Desert Lakes |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| 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 - 1300 m | Occasional altitudinal limits |
| Purpose | Scale |
|---|---|
| Pets/display animals, horticulture | international |
| Sport hunting/specimen collecting | subsistence, national |
Recommended citation
BirdLife International (2024) Species factsheet: Grey Teal Anas gracilis. Downloaded from
https://datazone.birdlife.org/species/factsheet/grey-teal-anas-gracilis 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.