The Semipalmated Sandpiper breeds in the lower Arctic regions and migrates along the Atlantic coast. During fall migration they are typically found along Cape Cod shorelines and mudflats. This small sandpiper has gray-brown upper parts, white underparts, a short black bill, and black legs. It feeds on insects and worms. This migrating sandpiper was recently seen foraging at low tide in the mudflats in Great Sippewissett Marsh.