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.
Arrives in much of U.S. in April, Alaska in May (Terres 1980). Common migrant in Puerto Rico and the Virgin Islands. Migrates through Costa Rica mainly early to mid-August through October and early March-late May or early June (Stiles and Skutch 1989). In South America mainly August to May (though some may linger throughout year) (Hilty and Brown 1986, Ridgely and Tudor 1989). See Turner and Rose 1989 for information on Old World migrations.
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