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Range DescriptionCalidris tenuirostris breeds in north-east Siberia, Russia, wintering mainly in Australia, but also throughout the coastline of South-East Asia and on the coasts of India, Bangladesh, Pakistan, and the eastern coast of the Arabian Peninsula (del Hoyo et al. 1996). The Yellow Sea of North Korea, South Korea and China is a particularly important stop-over site on migration in both spring and autumn. The global population has been estimated at 380,000 individuals, of which 176,000 were thought to pass through South Korea (Wetlands International 2006). Since then the reclamation and development of wetlands in South Korea has led to a decline in the observed counts of non-breeding populations, mostly notably including dramatic declines at the Saemangeum wetland which previously held c.20-30% of the global population on migration (Moores in litt. 2009, Rogers et al. in litt. 2009). Despite there being no observed declines within the Chinese portion of the Yellow Sea, further declines at smaller staging grounds in Japan and at major wintering grounds in Australia (of c.90,000 individuals [Rogers et al. 2009]) make it clear that the population is declining overall (Amano 2006, Moores et al. 2008, R. Clemens in litt. 2010).