Species: Calidris bairdii

false - false - true - Begins migrating north along Andes in March; reported staging at high elevation lakes; passes through U.S. and Canada April-early May; arrives in breeding areas late May-early June. Migration mainly though central interior North America in both spring and fall. Southward migration from breeding areas begins in July; most juveniles depart by mid-August. Juveniles (rare/regular) along both coasts in northern fall. Adults stage largely on northern plains of U.S., then often fly nonstop to South America (see Johnson and Herter 1989). Passes through northern South America late August-October (Hilty and Brown 1986). Often migrates in flocks with other small sandpipers.