At such times, usually mixes with flocks of western sandpipers and dunlins, but remains on the fringes of such flocks. Nests throughout northern Canada and Alaska in sedge, grass, and mossy bogs. Nest is a shallow depression on the ground, lined with dry leaves or grass. Prefers shores of aquatic habitats with abundant invertebrate food. Yearlong, diurnal activity.
Migration occurs at night.
Wintering population mostly migrates to northern Canada and Alaska to breed April through July. Territorial on breeding ground but territory size not reported. Breeding begins in early to mid-June. Niche relationships among six species of shorebirds on their wintering and breeding ranges. Bent, A. C. 1927.