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Description |
Geographic Range [top]
Countries occurrence:
Native:
Bangladesh; Cambodia; China; India; Indonesia; Japan; Lao Peoples Democratic Republic; Malaysia; Myanmar; Nepal; Oman; Pakistan; Philippines; Singapore; Sri Lanka; Taiwan, Province of China; Thailand; Viet Nam
Vagrant:
Afghanistan; Australia; Qatar; Yemen
Additional data:
? Continuing decline in area of occupancy (AOO): Unknown
? Extreme fluctuations in area of occupancy (AOO): No ? Estimated extent of occurrence (EOO) - km2: 6410000
? Continuing decline in extent of occurrence (EOO): Unknown ? Extreme fluctuations in extent of occurrence (EOO): No
? Continuing decline in number of locations: Unknown
? Extreme fluctuations in the number of locations: No
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: 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).
Current Population Trend: Decreasing
Additional data:
? Continuing decline of mature individuals: Unknown
? Extreme fluctuations: No ? Population severely fragmented: No
? Continuing decline in subpopulations: Unknown
? Extreme fluctuations in subpopulations: No ? All individuals in one subpopulation: No
Habitat and Ecology [top]
Citation: BirdLife International. 2012. Hydrophasianus chirurgus. The IUCN Red List of Threatened Species 2012: e.T22693543A38797473. http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T22693543A38797473.en. Downloaded on 13 July 2016.
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