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Description |
Geographic Range [top]
Range Description: There is evidence to suggest that the European population (200,000-510,000 pairs, occupying 50-74% of the global breeding range) has declined by up to 30% over ten years (three generations), but this may reflect shifts in breeding populations, populations in Asia are not thought to be declining and wintering populations in Africa appear to be increasing.
Countries occurrence:
Native:
Bangladesh; Bhutan; Brunei Darussalam; Cambodia; China; Hong Kong; India; Indonesia; Japan; Korea, Democratic Peoples Republic of; Korea, Republic of; Lao Peoples Democratic Republic; Malaysia; Mongolia; Myanmar; Philippines; Russian Federation; Singapore; Sri Lanka; Taiwan, Province of China; Thailand; Viet Nam
Vagrant:
Belgium; Cyprus; Czech Republic; Finland; France; Germany; Hungary; Italy; Maldives; Malta; Nepal; Netherlands; Norway; Oman; Palau; Poland; Portugal; Sweden; United Arab Emirates; United Kingdom; United States
Additional data:
? Continuing decline in area of occupancy (AOO): Unknown
? Extreme fluctuations in area of occupancy (AOO): No ? Estimated extent of occurrence (EOO) - km2: 6690000
? 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
? Upper elevation limit (metres): 1500
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 described as fairly common to common throughout most of its range (del Hoyo et al. 2005), while national population estimates include: c.10,000-100,000 breeding pairs and c.50-10,000 individuals on migration in China; c.1,000-10,000 individuals on migration and c.1,000-10,000 wintering individuals in Taiwan; c.50-10,000 individuals on migration and c.50-1,000 wintering individuals in Japan and c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in Russia (Brazil 2009).
Trend Justification: The population trend is difficult to determine because of uncertainty over the impacts of habitat modification on population sizes.
Current Population Trend: Unknown
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. Turdus obscurus. The IUCN Red List of Threatened Species 2016: e.T22708793A94177211. http://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22708793A94177211.en. Downloaded on 07 February 2017.
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