Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: Yes. At least some 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.
Begins departure from southernmost coastal wintering areas late March or April, moves inland by late April-early May. Migration evidently nocturnal over land, partly diurnal along coast. Apparently migrates in flocks.