Data Zone
Taxonomic source(s)
Christidis, L. and Boles, W.E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
Christidis, L.; Boles, W. E. 2008. Systematics and taxonomy of Australian birds. CSIRO Publishing, Collingwood, Australia.
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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| 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 |
| Migratory status | full migrant | Forest dependency | Does not normally occur in forest |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 19,700,000 | medium |
| Extent of Occurrence non-breeding (km2) | 20,400,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | poor | estimated | 2009 | |
| Population trend | Decreasing | suspected | - | |
| 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) | 4.8 | - | - | - |
Population justification: The global population is estimated to number > c.100,000 individuals (Wetlands International 2006), while national population estimates include: c.100-10,000 breeding pairs in China; < c.100 breeding pairs and < c.50 individuals on migration in Taiwan; < c.100 breeding pairs and < c.50 individuals on migration in Korea and < c.50 individuals on migration in Japan (Brazil 2009).
Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and degradation (del Hoyo et al. 1996).
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Afghanistan | V | Extant | ||||
| Australia | V | Extant | ||||
| Bangladesh | N | Extant | ||||
| Cambodia | N | Extant | ||||
| China (mainland) | N | Extant | ||||
| India | N | Extant | Yes | |||
| Indonesia | N | Extant | ||||
| Japan | N | Extant | ||||
| Laos | N | Extant | ||||
| Malaysia | N | Extant | ||||
| Myanmar | N | Extant | ||||
| Nepal | N | Extant | ||||
| Oman | N | Extant | Yes | |||
| Pakistan | N | Extant | ||||
| Philippines | N | Extant | ||||
| Qatar | V | Extant | ||||
| Singapore | N | Extant | ||||
| Sri Lanka | N | Extant | ||||
| Taiwan, China | N | Extant | ||||
| Thailand | N | Extant | ||||
| Vietnam | N | Extant | ||||
| Yemen | V | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| Bangladesh | Tanguar Haor and Panabeel |
| Taiwan, China | Hulupi |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| 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) | suitable | non-breeding |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | breeding |
| Wetlands (inland) | Permanent Freshwater Marshes/Pools (under 8ha) | suitable | non-breeding |
| Wetlands (inland) | Permanent Freshwater Marshes/Pools (under 8ha) | suitable | breeding |
| Altitude | Occasional altitudinal limits |
Recommended citation
BirdLife International (2022) Species factsheet: Hydrophasianus chirurgus. Downloaded from
http://www.birdlife.org on 06/12/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 06/12/2022.
