SCOTLAND: The Big Picture / Turnstones (Arenaria interpres) and Purple sandpipers (Calidris maritima) over wintering on the beaches of the Orkney Isles, Scotland, UK, April.

Alan Murphy/ BIA / Ruddy Turnstone (Arenaria interpres) feeding on clams, Texas

Alan Murphy/ BIA / Ruddy Turnstone (Arenaria interpres) hopping, Texas

Alan Murphy/ BIA / Ruddy Turnstone (Arenaria interpres) feeding on clams, Texas

Chris Gomersall / 2020VISION / Ruddy turnstone (Arenaria interpres) feeding on shingle beach, Norfolk, England, UK, November. Did you know? Turnstones can flip rocks almost as heavy as they are.

Rolf Nussbaumer / Turnstone in surf {Arenaria interpres} Sanibel Is, Florida, USA.

Rolf Nussbaumer / Turnstone on beach {Arenaria interpres} Sanibel Is, Florida, USA.

Espen Bergersen / Ruddy turnstone (Arenaria interpres) in water, Iceland

Hanne & Jens Eriksen / Ruddy turnstone (Arenaria interpres) in flight over sea. Oman, November.

Loic Poidevin / Ruddy turnstone (Arenaria interpres) foraging on the beach, Vendee, France, January.

Ernie Janes / Turnstone (Arenaria interpres) in summer plumage, on Norfolk shoreline in breaking wave, England, UK, May.

Ernie Janes / Turnstone (Arenaria interpres) in summer plumage, Norfolk, England, UK, May.

Alan Murphy/ BIA / Ruddy Turnstone (Arenaria interpres) feeding on crab carcass, Texas

Alan Murphy/ BIA / Ruddy Turnstone (Arenaria interpres) feeding on crab carcass, Texas

Nick Upton / Ruddy turnstone (Arenaria interpres) roosting on volcanic rock behind a beach at high tide, Costa de Papagayo, Lanzarote, Canary Islands, February.

Nick Upton / Ruddy turnstone (Arenaria interpres) foraging on a sandy beach, Costa de Papagayo, Lanzarote, Canary Islands, February.

Nick Upton / Two Ruddy turnstones (Arenaria interpres) foraging on a sandy beach close to beach toweels and tourists, Costa de Papagayo, Lanzarote, Canary Islands, February.

Pedro Narra / Ruddy turnstone (Arenaria interpres) Vieira Poillo , Bijagos Archipellago. Guinea Bissau

David Tipling / Turnstone (Arenaria interpres) in winter plumage Sheringham Norfolk, England, UK. January

Johannes Melchers/ BIA / Ruddy Turnstone (Arenaria interpres), Finnmark, Norway

Roger Powell / Ruddy turnstone (Arenaria interpres) flapping wings after bathing in a shoreline pool. Langbuness, Varanger fjord, Finnmark, Norway

Roger Powell / Ruddy Turnstone (Arenaria interpres) bathing in a shoreline pool. Langbuness, Varanger fjord, Finnmark, Norway

Melvin Grey / Ruddy turnstone (Arenaria interpres) female in breeding plumage Fort De Soto Park, Florida, USA, April.

Nick Upton / Turnstone (Arenaria interpres) foraging on cliff edge with a Sandhopper (Talitrus saltator) it has caught in its beak, Cornwall, UK, October.

Doug Wechsler / Ruddy turnstone (Arenaria interpres) eating horseshoe crab on beach, with Semipalmated sandpipers (Calidris pusilla) in background, Delaware Bay, New Jersey, May.

Doug Wechsler / Ruddy turnstone (Arenaria interpres) feeding on dead horseshoe crab on beach, with Semipalmated sandpipers (Calidris pusilla) in background, Delaware Bay, New Jersey, May.

Doug Wechsler / Horseshoe crabs (Limulus polyphemus) on beach mating, with Ruddy turnstone (Arenaria interpres) and Red knot (Calidris canuta) on beach, Delaware Bay, New Jersey, May.

Doug Wechsler / Ruddy turnstone (Arenaria interpres) feeding on dead horseshoe crab, Delaware Bay, New Jersey, May.

Doug Wechsler / Red knots (Calidris canutus) Ruddy turnstones (Arenaria interpres) and Semipalmated sandpipers (Calidris pusilla) Franklin's gull (Leucophaeus pipixcan) and juvenile Herring gulls (LEucophaeus atricil...

Doug Wechsler / Red knots (Calidris canuta) and Ruddy turnstone (Arenaria interpres) feeding on Horseshoe crab (Limulus polyphemus) eggs, Delaware Bay, New Jersey, USA, May.

Dave Bevan / Small flock of Turnstones (Arenaria interpres) feeding on shoreline, Ceredigion, Wales, UK, December.

Roger Powell / Ruddy turnstone (Arenaria interpres) feeding on beach. Radio tagged to identify its migration route. Druridge Bay, Northumberland, England, UK, February

Lynn M. Stone / Ruddy turnstone (Arenaria interpres) pecking at a live Lettered olive snail (Oliva sayana) on a sandy beach at low tide, Tampa Bay, St. Petersburg, Florida, USA. April.

Dave Bevan / Close-up of a Turnstone (Arenaria interpres) foraging on the tide line of a shingle beach, Ceredigion, Wales, UK, November.

Dave Bevan / Common kingfisher (Alcedo atthis) perched on a rocky outcrop with the sea in the background, Turnstones (Arenaria interpres) foraging amongst seaweed nearby, Ceredigion, Wales, UK, November.

Loic Poidevin / Dunlin (Calidris alpina) group with one Ruddy turnstone (Arenaria interpres) and one Common ringed plover (Charadrius hiaticula), Marais Breton, Vendée, France, January.

Phil Savoie / Ruddy turnstone (Arenaria interpres) on shore, Dennisport, Massachusetts, USA. May.

Phil Savoie / Ruddy turnstone (Arenaria interpres) on shore, Dennisport, Massachusetts, USA. May.

Dave Bevan / Flock of Turnstones (Arenaria interpres) feeding on a sea wall, disturbed by a runner, Devon, England, UK, January

Dave Bevan / Flock of Turnstones (Arenaria interpres) feeding on a sea wall, Devon, England, UK, January

Philippe Clement / Turnstone (Arenaria interpres) feeding on a dead fish,showing winter plumage, Belgium, December.

Philippe Clement / Turnstone (Arenaria interpres) feeding on a dead fish,showing winter plumage, Belgium, December.

Philippe Clement / Turnstone (Arenaria interpres) feeding on a dead fish,showing winter plumage, Belgium, December.

Philippe Clement / Herring gulls (Larus argentatus) and Turnstones (Arenaria interpres) on breakwater at sunset, Belgium, December.

Philippe Clement / Two Turnstones (Arenaria interpres) feeding at low tide, non-breeding plumage, Belgium, March.

Terry Whittaker / Ruddy turnstones (Arenaria interpres) in puddle, Whitstable Harbour, Kent, UK, February.

Terry Whittaker / Ruddy turnstones (Arenaria interpres) in Whitstable Harbour, Kent, UK, February.

Terry Whittaker / People watching Ruddy turnstones (Arenaria interpres) at Whitstable Harbour, Kent, UK, February 2014.

Terry Whittaker / Ruddy turnstones (Arenaria interpres) resting on fishing net, Whitstable Harbour, Kent, UK, February.

Terry Whittaker / Ruddy turnstones (Arenaria interpres) resting on fishing net, Whitstable Harbour, Kent, UK, February.

Terry Whittaker / Ruddy turnstones (Arenaria interpres) resting on fishing net, Whitstable Harbour, Kent, UK, February.

Fabrice Cahez / Ruddy turnstone (Arenaria interpres) Oleron island, France

Fabrice Cahez / Ruddy turnstone (Arenaria interpres) on shore, Baie de Morlaix, Brittany, France, October.

Philippe Clement / Ruddy turnstone (Arenaria interpres) in non-breeding plumage foraging among shells on beach along the North Sea coast in autumn, Belgium, November

Martin Gabriel / Ruddy turnstone (Arenaria interpres), Curieuse Island, Republic of Seychelles

Loic Poidevin / Ruddy turnstone (Arenaria interpres) foraging in oyster shells on beach, Marais Breton, Vendee, France, January

Loic Poidevin / Ruddy turnstone (Arenaria interpres) portrait on beach, Vendee, France, Atlantic Coast, November

Robin Chittenden / Turnstone (Arenaria interpres) Trinidad and Tobago, April

Gerrit Vyn / Adult female Ruddy Turnstone (Arenaria interpres) in breeding plumage. Yukon Delta National Wildlife Refuge. Alaska. June.

Gerrit Vyn / Adult female Ruddy Turnstone (Arenaria interpres) in breeding plumage. Yukon Delta National Wildlife Refuge. Alaska. June.

Robin Chittenden / Turnstone (Arenaria interpres) on beach, Norfolk, England, UK

Melvin Grey / Turnstone (Arenaria interpres) adults in winter plumage. Resting on breakwater. Hunstanton, Norfolk, UK, February.

Bernard Castelein / Turnstone (Arenaria interpres) foraging at coast, Texel,The Netherlands May

Bernard Castelein / Turnstone (Arenaria interpres), Texel,The Netherlands

Bernard Castelein / Turnstone (Arenaria interpres) in flight, Texel,The Netherlands May

Alan Murphy/ BIA / Ruddy Turnstone (Arenaria interpres) feeding on clam, Texas

Gerrit Vyn / Ruddy Turnstone (Arenaria interpres) female in breeding plumage incubating a nest, Yukon Delta National Wildlife Refuge. Alaska, USA June.

Gerrit Vyn / Ruddy Turnstone (Arenaria interpres) nest and eggs camouflaged in a tundra landscape, Yukon Delta National Wildlife Refuge. Alaska, USA June.

Gerrit Vyn / Ruddy Turnstone (Arenaria interpres) nest and eggs camouflaged in tundra habitat, Yukon Delta National Wildlife Refuge. Alaska, USA June.

Jussi Murtosaari / Ruddy turnstone (Arenaria interpres) Korpoo, Uto, Finland, May.

Gerrit Vyn / Ruddy turnstone (Arenaria interpres) in breeding plumage. Yukon Delta National Wildlife Refuge. Alaska, USA. June.

Gerrit Vyn / Ruddy turnstone (Arenaria interpres) in winter plumage foraging on coastal mud flats. Rakhine State, Myanmar. January.

Gerrit Vyn / Ruddy turnstone (Arenaria interpres) in winter plumage foraging on coastal mud flats. Rakhine State, Myanmar. January.

Ernie Janes / Turnstones (Arenaria interpres) in flight, Norfolk, England, UK, February.

Ernie Janes / Turnstone (Arenaria interpres) flock on beach, Norfolk, England, UK, February.

Ernie Janes / Turnstone (Arenaria interpres) in flight, Norfolk, England, UK, February.

Ole Jorgen Liodden / Ruddy turnstone (Arenaria interpres interpre) walking along rock, Norway, June.

Loic Poidevin / Ruddy turnstone (Arenaria interpres) feeding on crab, Atlantic Coast, Vendee, France, February.

Ernie Janes / Turnstone (Arenaria interpres) running on tideline, Norfolk, England, UK.

Ernie Janes / Turnstone (Arenaria interpres) in flight, Cromer, Norfolk, England, UK. January.

Paul Williams / Flock of semipalmated sandpiper (Calidris pusilla), ruddy turnstone (arenaria interpres) and red knot (Calidris canutus), Slaughter Beach, Delaware Bay, USA, May.

Pete Oxford / Ruddy turnstone (Arenaria interpres) Little St Simon's Island, Barrier Islands, Georgia, USA, April.

Ernie Janes / Turnstone (Arenaria interpres), Blakeney Point, Norfolk, England, UK, January.

Ernie Janes / Turnstone (Arenaria interpres) group at tide-line, Blakeney Point, Norfolk, England, UK, January.

Ernie Janes / Turnstone (Arenaria interpres) running, Blakeney Point, Norfolk, England, UK, January.

Ernie Janes / Turnstone (Arenaria interpres) group at tide-line, Blakeney Point, Norfolk, England, UK, January.

Ernie Janes / Turnstone (Arenaria interpres) group at tide-line, Blakeney Point, Norfolk, England, UK, January.

Ernie Janes / Turnstone (Arenaria interpres) group at tide-line, Blakeney Point, Norfolk, England, UK, January.

Pete Oxford / Ruddy Turnstone (Arenaria interpres) feeding on Horseshoe Crab (Limulus polyphemus) eggs, Little Saint Simon's Island, Georgia

Pete Oxford / Ruddy Turnstone (Arenaria interpres) feeding on Horseshoe Crab (Limulus polyphemus) eggs from dead female, Little Saint Simon's Island, Georgia

Loic Poidevin / Ruddy turnstone (Arenaria interpres) on pile of Oyster shells, Atlantic coast, France, December.

Loic Poidevin / Ruddy turnstone (Arenaria interpres) standing on rock at waters edge, Atlantic coast, France, December.

Brent Stephenson / Adult male Turnstone (Arenaria interpres) in breeding plumage, resting on a rock on the shoreline. St Malo, Brittany, France. September.

Nick Upton / Turnstone (Arenaria interpres) flock flying low along the Severn estuary shoreline after leaving their roost as the tide falls, Somerset, UK, September.

Robin Chittenden / Turnstone (Arenaria interpres) standing on rock, Lowestoft, Suffolk, UK, August

Filippo Nucifora / Ruddy Turnstone (Arenaria interpres) male in breeding plumage, Varanger, Norway