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Description |
Geographic Range [top]
Countries occurrence:
Native:
China; Japan; Korea, Democratic Peoples Republic of; Korea, Republic of; Lao Peoples Democratic Republic; Myanmar; Russian Federation; Taiwan, Province of China; Thailand; Viet Nam
Vagrant:
Nepal; Philippines
Additional data:
? Continuing decline in area of occupancy (AOO): Unknown
? Extreme fluctuations in area of occupancy (AOO): No ? Estimated extent of occurrence (EOO) - km2: 2460000
? 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 size has not been quantified, but the species is reported to be locally common (Baker 1997), while national population estimates include: c.10,000-100,000 breeding pairs, c.1,000-10,000 individuals on migration and c.50-1,000 wintering individuals in China; c.50-1,000 individuals on migration and c.50-1,000 wintering individuals in Taiwan; c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in Korea; c.10,000-100,000 breeding pairs, c.1,000-10,000 individuals on migration and < c.1,000 wintering individuals in Japan and c.100-10,000 breeding pairs and c.50-1,000 individuals on migration in Russia (Brazil 2009).
Trend Justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
Current Population Trend: Stable
Additional data:
? Number of mature individuals: Unknown ? 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. 2016. Urosphena squameiceps. The IUCN Red List of Threatened Species 2016: e.T22714368A94414311. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22714368A94414311.en. Downloaded on 10 February 2017.
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