Winfried Wisniewski / Ruff (Philomachus pugnax) male at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) male displaying at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) male flying, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) male flying at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) male displaying at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) male displaying at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) males fighting at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) males fighting at lek, Varanger Peninsula,Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) male flying, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) males fighting at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) males fighting at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) male in breeding plumage at lek, Varanger Peninsula, Norway

Winfried Wisniewski / Ruff (Philomachus pugnax) males fighting at lek, Varanger Peninsula,Norway

Ernie Janes / Curlews (Numenius arquata) in flight. Salthouse, Norfolk, September.

Ernie Janes / Curlew (Numenius arquata) silhouetted in flight. Salthouse, Norfolk, September.

Ernie Janes / Black-tailed Godwit (Limosa limosa) feeding in wet grassland with goose in background. UK, September.

Andrew Parkinson / Redshank (Tringa totanus) foraging on beach. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Redshank (Tringa totanus) adult foraging on beach. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Redshank (Tringa totanus) adult foraging on beach. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Redshank (Tringa totanus) adult foraging on beach. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Redshank (Tringa totanus) adult foraging among seaweed in the tidal shallows. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Knot (Calidris canutus) adult in shallow water. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Knot (Calidris canutus) adult. Shetland Islands, UK, September.

Andrew Parkinson / Knot (Calidris canutus) adult on beach. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Knot (Calidris canutus) adult on beach. Shetland Islands, Scotland, UK.

Andrew Parkinson / Knot (Calidris canutus) adult on beach. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Knot (Calidris canutus) adult foraging on beach. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Knot (Calidris canutus) adult foraging on beach. Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Knot (Calidris canutus) flock taking flight. Norfolk, UK, September.

Andrew Parkinson / Knot (Calidris canutus) large flock in flight before roosting. Norfolk, UK, September.

Claudio Contreras / Marbled Godwit (Limosa fedoa) feeding, San Quintin, Baja California Peninsula, Mexico, December.

Loic Poidevin / Curlew (Numenius arquata) flock flying along Atlantic coast of France, August

Loic Poidevin / Redshank (Tringa totanus) calling, Breton Marsh, West France, June

Loic Poidevin / Black tailed godwit (Limosa limosa) two males fighting over territory, Vendeed Marsh, West France, May

Loic Poidevin / Black tailed godwit (Limosa limosa) two males fighting over territory, Vendeed Marsh, West France, May

Hanne & Jens Eriksen / Ruff (Philomachus pugnax) male, Denmark, May

Hanne & Jens Eriksen / Ruff (Philomachus pugnax) male, Denmark, May

Hanne & Jens Eriksen / Ruff (Philomachus pugnax) male, Denmark, May

Hanne & Jens Eriksen / Pin tailed snipe (Gallinago stenura) near vegetation Oman, November

Hanne & Jens Eriksen / Black tailed Godwit (Limosa limosa) in tail display, Denmark, May

Hanne & Jens Eriksen / Black tailed Godwit (Limosa limosa) walking in grass, Denmark, May

Orsolya Haarberg / Red knot (Calidris canutus) flock feeding on coastal rocks that are washed by waves with two eiders (Somateria mollissima) resting on rocks in the top-left-hand corner. Snaefellsnes peninsula, Iceland...

Tui De Roy / Ruddy turnstones (Arenaria interpres) in shallow water. Galapagos Islands, Ecuador, November.

Tui De Roy / Ruddy turnstone (Arenaria interpres) in shallow water. Galapagos Islands, Ecuador, November.

Tui De Roy / Ruddy turnstone (Arenaria interpres) in shallow water. Galapagos Islands, Ecuador, November.

Tui De Roy / Ruddy turnstone (Arenaria interpres) walking across sand. Galapagos Islands, Ecuador, November.

Philippe Clement / Redshank (Tringa totanus) perched on fence pole in grassland, Zeeland, the Netherlands, May

Andy Rouse / Knot (Calidris canuta) flock in flight on foreshore with wind turbines in distance, Liverpool Bay, UK December

Tom Vezo / Pectoral Sandpiper (Calidris melanotos) juvenile foraging, Cape May, New Jersey

Andy Rouse / 2020VISION / Knot (Calidris canuta) and Oystercatchers (Haematopus ostralegus) roosting and foraging on tidal flats. Liverpool Bay, UK, December.

Andy Rouse / 2020VISION / Redshank (Tringa totanus) forgaging on tidal flat. Liverpool Bay, UK, December.

Andy Rouse / 2020VISION / Redshank (Tringa totanus) flock in flight low over water. Liverpool Bay, UK, December.

Andy Rouse / 2020VISION / Knot (Calidris canuta) and other waders foraging on tidal flats with wind farm on horizon. Liverpool Bay, UK, December.

LYNN M. STONE / Marbled Godwit (Limosa fedoa) foraging in shallows of salt marsh lagoon. Florida, St. Petersburg, Florida, USA, April.

Alan Williams / Black-tailed Godwit (Limosa limosa) feeding in pond in marsh in summer plumage Lancashire, UK, April

Alan Williams / Black-tailed Godwits (Limosa limosa) fighting over feeding territory in summer plumage Lancashire, UK, April

Alan Williams / Black-tailed Godwit (Limosa limosa) walking in pond in marsh in summer plumage, Lancashire, UK, April

Alan Williams / Black-tailed Godwit (Limosa limosa) preening in pond in marsh in summer plumage, Lancashire, UK April

Alan Williams / Black-tailed Godwit (Limosa limosa) preening in pond in marsh in summer plumage Lancashire, UK April

Alan Williams / Black-tailed Godwits (Limosa limosa) fighting over feeding territory in summer plumage, Lancashire, UK, April

Alan Williams / Black-tailed Godwits (Limosa limosa) fighting over feeding territory in summer plumage, Lancashire, UK, April

Alan Williams / Black-tailed Godwits (Limosa limosa) fighting over feeding territory in summer plumage, Lancashire, UK, April

Tom Vezo / Hudsonian Godwit (Limosa haemastica) calling, Churchill, Manitoba, Canada

Tom Vezo / Hudsonian Godwit (Limosa haemastica), Churchill, Manitoba, Canada

Tom Vezo / Dunlin (Calidris alpina), Rio Grande Valley, Texas

Ernie Janes / Black-tailed godwit (Limosa limosa) landing on water, Norfolk, UK, March.

Konstantin Mikhailov / Snipe (Gallinago sp) drinking water from creek during spring migration at 3500-4000m in Mustang, Nepal, Trans Himalaya, Central Asia, April.

Terry Whittaker / 2020VISION / Black-tailed godwit (Limosa limosa) landing on water, Oare Marshes, Kent, England, UK, September.

Terry Whittaker / 2020VISION / Black-tailed godwits (Limosa limosa) on mudflats at dusk ,with town of Whitstable in background, South Swale Nature Reserve, Kent, England, UK, October.

Terry Whittaker / 2020VISION / Black-tailed godwit (Limosa limosa) in flight, South Swale, Kent, England, UK, March.

Terry Whittaker / 2020VISION / Flock of Knot (Calidris canutus) in flight over mudflats, Leigh-on-Sea, Essex, England, UK, December.

Terry Whittaker / 2020VISION / Knot (Calidris canutus), Dunlin (Calidris alpina) and Grey plover (Pluvialis squatarola) resting on shoreline in snow, South Swale, Kent, England, UK, February.

David Tipling / 2020VISION / Black-tailed Godwit (Limosa limosa) in flight over water. Cambridgeshire Fens, England, March.

David Tipling / 2020VISION / Bar-tailed Godwits (Limosa lapponica) arriving at a roost on the Wash. Snettisham RSPB Reserve, Norfolk, January.

David Tipling / 2020VISION / Bar-tailed Godwit (Limosa lapponica) foraging on tidal flats. Norfolk, January.

Chris Gomersall / 2020VISION / Common redshank (Tringa totanus) feeding on mudflats on the Wash estuary, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Eurasian curlew (Numenius arquata) feeding on mudflats on the Wash estuary, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) in flight at high water on the Wash estuary at sunset, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) in flight at high water on the Wash estuary at sunset, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) in flight at high water on the Wash estuary at sunset, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) in flight at high water on the Wash estuary, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) and Bar-tailed godwit (Limosa lapponica) in flight at high water on the Wash estuary, with bird hide in the background, Snettisham RSPB reserve, Norfolk, England,...

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) and Bar-tailed godwit (Limosa lapponica) in flight at high water on the Wash estuary, with bird hide in the background, Snettisham RSPB reserve, Norfolk, England,...

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) and Bar-tailed godwit (Limosa lapponica) in flight at high water on the Wash estuary, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) and Bar-tailed godwit (Limosa lapponica) in flight at high water on the Wash estuary, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) and Bar-tailed godwit (Limosa lapponica) in flight at high water on the Wash estuary, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) in flight at high water on the Wash estuary, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) in flight at high water on the Wash estuary, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) in flight at high water on the Wash estuary, Snettisham RSPB reserve, Norfolk, England, UK, March

Chris Gomersall / 2020VISION / Flock of Red knot (Calidris canutus) in flight at high water on the Wash estuary, Snettisham RSPB reserve, Norfolk, England, UK, March

Bertie Gregory / 2020VISION / Mixed flock of Avocets (Recurvirostra avosetta) and Black-tailed godwits (Limosa lapponica) in flight with houses in the background, Brownsea Island, Dorset, England, UK, December

Bertie Gregory / 2020VISION / Mixed flock of Avocets (Recurvirostra avosetta) and Black-tailed godwits (Limosa lapponica) in flight, Brownsea Island, Dorset, England, UK, December

Bertie Gregory / 2020VISION / Black-tailed godwit (Limosa limosa) resting on one leg, Brownsea Island, Dorset, England, UK, February

Bertie Gregory / 2020VISION / Black-tailed godwit (Limosa limosa) standing on ice with two Northern shovelers (Anas clypeata) resting in the background, Brownsea Island, Dorset, England, UK, February

Bertie Gregory / 2020VISION / Black-tailed godwit (Limosa limosa) silhouetted at sunrise, with water dripping from its bill, Brownsea Island, Dorset, England, UK, February