The species shows a preference for saline habitats and frequents mudflats and muddy or sandy estuaries in coastal regions, and occurs inland on saline and brackish lakes in steppe or semi-desert (Madge and Burn 1988, del Hoyo et al. 1992). Asiatic populations also occupy freshwater rivers or marshes and other populations utilise freshwater habitats on migration (Flint et al. 1984, Kear 2005).
Update : 11 April 2017