The purple sandpiper is a medium-sized wading bird that is mainly dark grey above and whitish below. It has a down curved beak and short bright orange legs. In flight it shows a thin white wing-stripe.
Smaller than a sandpiper, the turnstone has a mottled appearance with brown or chestnut and black upper parts and brown and white or black and white head pattern, whilst their under parts are white and legs orange. They spend most of their time creeping and fluttering over rocks, picking out food from under stones.