Small wader, feeds on terrestrial and coastal invertebrates; outside breeding season principally marine polychaete worms, crustaceans and molluscs. Nominate hiaticula NW Europe from S Scandinavia and Baltic south to France and west to Iceland and Spitsbergen, Greenland and eastern coasts of Ellesmere and Baffin Islands in Canada; tundrae coast and tundra of Lappland and USSR. A bird of sea coasts, also inland in suitable well-drained terrain. Although the population is decreasing the status is Least Concern. Largely migratory but some British birds resident.