Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: Yes. At least some populations of this species make annual migrations of over 200 km.
Moves northward January-March; arrives in nesting areas in northern U.S. and Canada by early April, northern Alaska mid- to late May. Many continue north to arctic wetlands drought reduces wetlands in prairie pothole region. Migrates south beginning in early August. Arrives in Costa Rica in late September or October, departs in January or February, depending on water levels (Stiles and Skutch 1989). Males may engage in extensive migration to molting areas while females incubate (Johnson and Herter 1989).