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Description |
Geographic Range [top]
Countries occurrence:
Native:
Bangladesh; Bhutan; Cambodia; China; India; Indonesia; Japan; Korea, Democratic Peoples Republic of; Korea, Republic of; Lao Peoples Democratic Republic; Malaysia; Myanmar; Nepal; Pakistan; Philippines; Russian Federation; Singapore; Taiwan, Province of China; Thailand; Viet Nam
Vagrant:
Palau; United Arab Emirates
Present - origin uncertain:
Afghanistan; Mongolia
Continuing decline in area of occupancy (AOO): Unknown
Extreme fluctuations in area of occupancy (AOO): No
Estimated extent of occurrence (EOO) - km2: 3760000
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
Lower elevation limit (metres): 1300
Upper elevation limit (metres): 4800
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: National population estimates include: c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in China; c.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in Taiwan; 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.10,000-100,000 breeding pairs and c.1,000-10,000 individuals on migration in Russia (Brazil 2009).
Trend Justification: The population is estimated to be increasing following a recorded range expansion (del Hoyo et al. 2004).
Current Population Trend: Increasing
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. 2012. Delichon dasypus. The IUCN Red List of Threatened Species 2012: e.T22712491A38599735. http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T22712491A38599735.en. Downloaded on 20 April 2016.
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