Turnstones are seen in small groups that can be rather tame. When feeding busily they search the shoreline, dodging waves, and often flicking aside seaweed and small pebbles to reach food. (hence their name) They often perch on posts and other objects in water, as in this case.
Food- They feed on mussels, Barnacles, Sandhoppers, periwinkle crabs and insects.
Movements and migrations- Turnstones that are seen in Britain breed in Northern Europe, Greenland and north-east Canada. Northern European birds pass through Britain in July and August en route to winter in Africa.