The Pectoral Sandpiper breeds in the Arctic from western Russia east to the Hudson Bay. These birds winter in South America, making them the longest distance migrant in North America. Most of these birds depart from their wintering grounds in South America in March and arrive along the Gulf coast from late March through April. Passage through the Great Plains takes place from mid-
In Florida, they are a common migrant usually seen from late July through September. During the spring migration, they usually appear from late March through May.