Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus) approaching Grey heron (Ardea cinerea) in shallow water, Aldabra Atoll, Seychelles, Indian Ocean

Bertie Gregory / 2020VISION / White spoonbill (Platalea leucorodia) feeding with water dripping from its bill, Brownsea Island, Dorset, England, UK, January

Andy Rouse / 2020VISION / Common snipe (Gallinago gallinago) feeding in shallow water in snow, Wales, UK, March

Terry Whittaker / 2020VISION / Avocet (Recurvirostra avosetta) in mist on grazing marsh at dawn with cattle grazing in the background, Thames Estuary, Elmley Marshes RSPB reserve, North Kent, UK,, April 2011. Photographer quote: 'G...

Tony Heald / Black-Winged Stilt (Himantopus himantopus) wading. Etosha National Park, Namibia, January.

Orsolya Haarberg / Spotted redshank (Tringa erythropus) at shallow water in snow, Ovre-Pasvik National Park, Norway

Juan Carlos Munoz / Aerial view of a flock of Lesser Flamingos (Phoeniconaias minor) wading in Lake Natron, with sediment trails, Rift Valley, Tanzania, Africa, August 2009

Juan Carlos Munoz / Aerial view of a flock of Lesser Flamingos (Phoeniconaias minor) wading in Lake Natron, with sediment trails, Rift Valley, Tanzania, Africa, August 2009

Juan Carlos Munoz / Aerial view of flock of Lesser Flamingos (Phoeniconaias minor) wading in Lake Magadi, with sediment trails, Rift Valley, Kenya, Africa, August 2009

Chris O'Reilly / Bittern (Botaurus stellaris) Adult wading through water amongst reeds, Winter, UK, Wild

Rolf Nussbaumer / Whooping Crane (Grus americana) wading in coastal waters, Seadrift, San Antonio Bay, Gulf Intracoastal Waterway, Coastal Bend, Texas Coast, USA

Edwin Giesbers / Small flock of Greater flamingo (Phoenicopterus roseus) wading on inland Kalloni lake, Lesbos, Greece

Wild Wonders of Europe / Damschen / Juvenile Black stork (Ciconia nigra) hunting for fish, Elbe Biosphere Reserve, Lower Saxony, Germany, August 2008

Wild Wonders of Europe / Damsche / Black stork (Ciconia nigra) wading portrait, Elbe Biosphere Reserve, Lower Saxony, Germany, August 2008

Wild Wonders of Europe / Damschen / Black stork (Ciconia nigra) wading in river, Elbe Biosphere Reserve, Lower Saxony, Germany, August 2008

Wild Wonders of Europe / Damsche / Black stork (Ciconia nigra) wading with fish in beak, Elbe Biosphere Reserve, Lower Saxony, Germany, August 2008

Wild Wonders of Europe / Damschen / Grey heron (Ardea cinerea) with water dripping from beak, Elbe Biosphere Reserve, Lower Saxony, Germany, September 2008

Wild Wonders of Europe / Damsche / Black stork (Ciconia nigra) wading, catching fish in beak, Elbe Biosphere Reserve, Lower Saxony, Germany, August 2008

Wild Wonders of Europe / Damschen / Great egret (Ardea alba) landing on water, Elbe Biosphere Reserve, Lower Saxony, Germany, September 2008

Winfried Wisniewski / Great Egret (Casmerodius albus) landing on water, Florida

Jose B. Ruiz / Little Egret {Egretta garzetta} portrait wading and looking for prey in water, Donana NP, Sevilla, Spain

Richard Du Toit / Hammerhead stork {Scopus umbretta} beside the Sabie river, Kruger NP, South Africa

Pete Oxford / James's flamingos (Phoenicoparrus jamesi) Laguna Colorada, Bolivia

Anup Shah / Flamingos on shores of Lake Logipi, Great Rift Valley, Northern Kenya

Gerry Ellis / Hippopotamus (Hippopotamus amphibius) swimming in water lettuce, with Cattle Egret (Bulbulcus ibis) perched on head, Serengeti National Park, Tanzania

Shin Yoshino / African Elephant (Loxodonta africana) along waterhole with wallowing Hippopotamuses (Hippopotamus amphibious) and Cattle Egret (Bubulcus ibis) flock, Ngorongoro Crater, Tanzania

Rolf Nussbaumer / Long billed dowitcher feeding in water {Limnodromus scolopaceus} Texas, USA.

Jose B. Ruiz / Black tailed godwit wading, Spain, Europe

Thomas Mangelsen / White Ibis (Eudocimus albus) trio feeding at sunset, Ding Darling National Wildlife Refuge, Sanibel Island, Florida

Tim Fitzharris / American Avocet (Recurvirostra americana) wading through shallow water, North America

Tim Fitzharris / Roseate Spoonbill (Platalea ajaja) adult in breeding plumage standing in golden-colored water, North America

Jim Brandenburg / Roseate Spoonbill (Platalea ajaja) in wetland, Florida

Jim Brandenburg / Snowy Egret (Egretta thula) flying over water, Ding Darling National Wildlife Refuge, Florida

Tim Fitzharris / Black-necked Stilt (Himantopus mexicanus) wading through reeds, North America

Anup Shah / Greater flamingos courtship dance (Phoenicopterus ruber) Lake Bogoria, Kenya

Tony Heald / Male African jacana caring for chick and eggs {Actophilornis africana} Chobe NP, Botswana

George Sanker / Greater Yellowlegs (Tringa melanoleuca) in shallow water. Everglades National Park, Florida, USA, March.

Ann & Steve Toon / Black winged stilts (Himantopus himantopus) in water at Lake Nakuru National Park, Kenya, September

Markus Varesvuo / Grey Plover (Pluvialis squatarola) adult profile on shoreline, Uto Finland May

Markus Varesvuo / Spotted Redshank (Tringa erythropus) standing in shallow water, Uto Finland June

Loic Poidevin / Lapwing (Vanellus vanellus) foraging in wetlands, Vendeen Marsh, West France, September

Robin Chittenden / Glossy Ibis (Plegadis falcinellus) wading in water, Lesvos, Greece, April

Robin Chittenden / Black Stork (Ciconia nigra) wading in water, Lesvos Greece, April

Robin Chittenden / Grey headed gull (Chroicocephalus cirrocephalus) in shallow water, Western Division, Gambia, March

Juan Carlos Munoz / Mixed flock of wading birds including Roseate Spoonbills (Platalea ajaja) silhouetted on water. Everglades National Park, Florida, USA, February.

Roger Powell / White stork (Ciconia ciconia) frontal view of bird fishing, Guerreiro, Castro Verde, Alentejo, Portugal, April

Tui De Roy / Whimbrel (Numenius phaeopus) wading, Galapagos islands

Loic Poidevin / Red wattled lapwing (Vanellus indicus) two in water, India, March

George Sanker / Sandhill crane (Grus canadensis) pair feeding in water, Myakka River State Park, Florida, USA, April

George Sanker / Sandhill crane (Grus canadensis) alongside Snowy egret (Egretta thula) in water, Myakka River State Park, Florida USA, April

Cheryl-Samantha Owen / Blacktip reef shark (Carcharhinus melanopterus) approaching Grey heron (Ardea cinerea) in shallow water, Aldabra Atoll, Seychelles, Indian Ocean

Cheryl-Samantha Owen / Blacktip reef sharks (Carcharhinus melanopterus) approaching Grey heron (Ardea cinerea) in shallow water, Aldabra Atoll, Seychelles, Indian Ocean

Paul Williams / Bare faced ibis (Phimosus infuscatus) hunting in water, Pantanal, Pocone, Brazil

LYNN M. STONE / Long-Billed Curlew (Numenius americanus) with Fiddler Crab (Unca sp.) in its beak. St. Petersburg, Florida, USA, April.

Steven David Miller / Juvenile Pied heron (Egretta picata) wading in water, hunting, Parry Lagoons Nature Reserve, Wyndham, Western Australia, July

Bertie Gregory / 2020VISION / Little egret (Egretta garzetta) wading through shallow water, Brownsea Island, Dorset, England, UK

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

Rod Williams / South american comb billed duck (Sarkidiornis melanotos sylvicola) female wading in water. Captive, occurs Eastern Tropical South America.

Andrew Parkinson / 2020VISION / Mixed flock of Golden plover (Pluvialis apricaria) and Lapwing (Vanellus vanellus) roosting in shallow water of lagoon, evening, Titchwell RSPB Reserve, Norfolk, UK, October

Daniel Heuclin / Andean goose (Chloephaga melanoptera) wading in shallow water, feeding, near El Paso Las Viscachas, 4450 m. Bolivian Altiplano.

Alan Williams / Curlew (Numenius arquata) wading in pool in saltmarsh, Lancashire, UK, September.

Erlend Haarberg / Common snipe (Gallinago gallinago) wading in water, Pusztaszer, Hungary, September

Hanne & Jens Eriksen / Spotted crake (Porzana porzana) wading in shallow water, Oman, September.

Roland Seitre / Conservation officer, Hernan Vargas Ayala, riding through wetland habitat looking out for the Critically endangered Blue throated / Wagler's macaw (Ara glaucogularis) Beni, Trinidad, Bolivia, January...

Roland Seitre / Two conservation officers riding through wetland habitat looking out for the Critically endangered Blue throated / Wagler's macaw (Ara glaucogularis) Beni, Trinidad, Bolivia, January 2007

Loic Poidevin / Western yellow wagtail (Motacilla flava) wading in marshland, Breton Marsh, West France.

Loic Poidevin / Black winged stilt (Himantopus himantopus) wading in rippled water, Breton Marsh, Vendée, West France.

Tony Heald / Lesser flamingo (Phoenicopterus minor) flock flying over many more in shallow waters of the Etosha pan, Etosha National Park, Namibia October

Fabrice Cahez / Common crane (Grus grus) flock wading in river, Allier River, Auvergne, France.

Diane McAllister / Yellow-billed stork (Mycteria ibis) searching for prey in water, Kenya

Richard Du Toit / White Rhinoceros (Ceratotherium simum) and Cattle Egret (Bubulcus ibis) drinking, Rietvlei Nature Reserve, Gauteng, South Africa

Ernie Janes / Black tailed godwit (Limosa limosa) wading, Norfolk, UK Autumn

David Kjaer / Avocet (Recurvirostra avosetta) in water, Brownsea Island, Dorset, UK, September

David Kjaer / Little Egret (Egretta garzetta) feeding on saltmarsh, Stanpit Marsh, Dorset, UK, January

David Kjaer / Greenshank (Tringa nebularia) feeding in water, Dorset, UK, September

David Kjaer / Greenshank (Tringa nebularia) feeding, Dorset, UK

David Kjaer / Greenshank (Tringa nebularia) feeding, catching prey in water, Dorset, UK, September

David Kjaer / Greenshank (Tringa nebularia) feeding, Dorset, UK, September

David Kjaer / Curlew (Numenius arquata) wading on saltmarsh, Dorset, UK, January

Brent Stephenson / Royal Spoonbill (Platalea regia) foraging in shallow water. Manawatu Estuary, Manawatu, New Zealand, September.

Brent Stephenson / Royal Spoonbill (Platalea regia) standing in shallow water. Manawatu Estuary, Manawatu, New Zealand, September.

Markus Varesvuo / Black winged Stilt wading (Himantopus himantopus) Israel

Chien Lee / Marsh Sandpiper (Tringa stagnatilis) foraging in shallow water, Sarawak, Borneo, Malaysia

Dave Watts / Little egret (Egretta garzetta) Camargue, France, April

Terry Whittaker / 2020VISION / Avocet (Recurvirostra avosetta) on grazing marsh at sunrise, RSPB Greater Thames Futurescapes Project, Isle of Sheppey, North Kent, UK, June

Terry Whittaker / 2020VISION / Avocet (Recurvirostra avosetta) on grazing marsh at sunrise, RSPB Greater Thames Futurescapes Project, Isle of Sheppey, North Kent, UK, June

Mark Hamblin / 2020VISION / RSPB scientist studying aquatic invertebrate adundance as part of Common Scoter (Melanitta nigra) research, Forsinard Flows RSPB reserve, Flow Country, Sutherland, Highlands, Scotland, UK, June 2011....

Mark Hamblin / 2020VISION / RSPB scientist studying aquatic invertebrate adundance as part of Common Scoter (Melanitta nigra) research, Forsinard Flows RSPB reserve, Flow Country, Sutherland, Highlands, Scotland, UK, June 2011....

LYNN M. STONE / Limpkin (Aramus guarauna) hunting for Apple Snails in wetlands, Lakeland, Florida, USA

LYNN M. STONE / Limpkin (Aramus guarauna) in water, Lakeland, Florida, USA

LYNN M. STONE / American wood ibis / Wood stork (Mycteria americana) feeding in tidewater shallows, Florida, USA, March

Andrew Parkinson / Turnstone (Arenaria interpres) wading through shallow water, Norfolk, UK, January.

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

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

Andrew Parkinson / Knot (Calidris canutus) adult foraging in the coastal shallows, Shetland Islands, Scotland, UK, September.

Andrew Parkinson / Turnstone (Arenaria interpres) wading in shallow water, Norfolk, UK, January.