Less commonly, occurs on rocky, intertidal marine and estuarine areas. Inhabits sand and gravel substrates of lacustrine and riverine habitats. Follows retreating waves, probing sand for small invertebrates. Generally forages in small flocks of 5-100. Does not breed in California.
Most nests are on rocky, barren tundra, well-drained ridges, or level alluvial plains.
Nest is a shallow scrape in the ground, often in or near clumps of low vegetation. No additional data found. Yearlong, circadian activity. In winter, makes periodic daily movements between intertidal feeding areas and high tide roosts, following tidal conditions. Also may feed at night.