Tideflats and saline emergent wetlands are preferred over rocky or sandy beaches. Nests on elevated, drier islands with tundra surrounded by ponds and marshes. No additional data found. Requires large expanses of soft mud or sand, with dense concentrations of invertebrate prey, in the winter. Yearlong, diurnal activity.
Migration occurs at night.
Local population along the central coast augmented by individuals passing through during spring and fall migration. Does not defend a defined feeding territory during the winter. Nest usually contains 4 eggs, rarely 5. Young precocial, but tended by both parents until able to fly at 17-18 days. Winters along coasts to Peru and Surinam.