Ruddy Turnstone

Habitat:

Breed along rocky coasts and in the tundra across the High Arctic. During migration they stop along coastal rocky and sandy beaches, mudflats, and shorelines of freshwater lakes to refuel. On their wintering grounds they congregate along rocky shorelines, mudflats, deltas, and sandy beaches. 

Notes:

There were three or four running along the beach with a group of Sanderlings. More accurately running away from Sanderlings that would give chase every time they found something to eat.