Enrique Lopez-Tapia / Madagascar green-emerald giant pill millipedes (Zoosphaerium neptunus) Andasibe-Mantadia National Park. Madagascar.

Enrique Lopez-Tapia / Madagascar green-emerald giant pill millipedes (Zoosphaerium neptunus) Andasibe-Mantadia National Park. Madagascar.

Enrique Lopez-Tapia / Madagascar green-emerald giant pill millipede (Zoosphaerium neptunus) Andasibe-Mantadia National Park. Madagascar.

Pete Oxford / Pill Millipede (Zoosphaerium sp) group from Zombitse Reserve, Madagascar

Piotr Naskrecki / Madagascan Emerald Giant Pill Millipede (Zoosphaerium neptunus) pair, Maromizaha Reserve, Madagascar

Piotr Naskrecki / Madagascan Emerald Giant Pill Millipede (Zoosphaerium neptunus) group held by guide, Maromizaha Reserve, Madagascar

Ismaele Tortella / Tracking shot of a Whooper swan (Cygnus cygnus) family walking, Lofoten, northern Norway, August.

Morley Read / Slow motion clip of a Mute swan (Cygnus olor) with three cygnets, Cornwall, England, UK, May. (non-ex)

Oscar Dewhurst / Mute swan (Cygnus olor), two cygnets sheltering under parent's wing. Richmond Park, London, England, UK. April.

Oscar Dewhurst / Mute swan (Cygnus olor) swimming with cygnets in misty lake in morning light. Richmond Park, London, England, UK. May.

David Pattyn / Mute swan (cygnus olor) family, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, June

Marion Vollborn/ BIA / Whooper Swan (Cygnus cygnus) group taking flight on snow, Hokkaido, Japan

Andrew Parkinson / Mute swan (Cygnus olor) cygnets with head submerged while feeding underwater, with mother watching and helping, Derbyshire, England, UK. June. Highly Commended in the Animal Behaviour category of the...

Cyril Ruoso / Mute swan (Cygnus olor) feeding underwater, Burgundy, France, March.

Cyril Ruoso / Mute swan (Cygnus olor) feeding underwater, Burgundy, France, March.

Cyril Ruoso / Mute swan (Cygnus olor) feeding underwater, Burgundy, France, November.

Cyril Ruoso / Mute swan (Cygnus olor) feeding along riverbed, viewed underwater, Burgundy, France. November.

Cyril Ruoso / Mute swan (Cygnus olor) feeding along riverbed, viewed underwater, Burgundy, France. November.

Cyril Ruoso / Mute swan (Cygnus olor) feeding along riverbed, viewed underwater, Burgundy, France. November.

Andy Rouse / Mute swan (Cygnus olor) feeding at dawn, Cardiff, Wales, UK, March.

Steve Downer / Close up of Mute swan cygnets (Cygnus olor) riding on their mother's back, Birmingham, England, UK, May.

Jussi Murtosaari / Whooper swan (Cygnus cygnus) pair in flight in snowy landscape, Finland, November.

Andy Rouse / Mute swan (Cygnus olor) stretching in morning light, UK, February.

Tim Fitzharris / Trumpeter Swan (Cygnus buccinator) flock flying, Arkansas

Wim van den Heever / Whooper swan (Cygnus cygnus) mid flight over the frozen lake, Kussharo, Hokkaido, Japan.

Wim van den Heever / Whooper swan (Cygnus cygnus) portrait, on frozen lake Kussharo, Hokkaido Japan, February.

Wim van den Heever / Whooper swans (Cygnus cygnus) juvenile with adults behind, on frozen Lake Kussharo, Hokkaido, Japan. February.

Donald M. Jones / Trumpeter Swan (Cygnus buccinator) trio flying, southern Alaska

Gerrit Vyn / Pair of adult Trumpeter Swans (Cygnus buccinator) in flight. Skagit County, Washington. January.

Nick Upton / Mute swan (Cygnus olor) female and a young cygnet foraging in sunset light, Kennet and Avon canal, Caen Hill, Wiltshire, UK, June.

Andy Rouse / Mute swan (Cygnus olor) with wings raised defensively at sunrise, Wales, UK, April.

Andy Rouse / Mute Swan (Cygnus olor) courtship behaviour, Wales, UK, April.

Danny Green / Whooper swans (Cygnus cygnus) two in flight, during snowfall, Lake Kussharo, Japan, February

Danny Green / Whooper swan (Cygnus cygnus) in flight in snowfall, Lake Kussharo, Japan, February

Martin Gabriel / Mute swans (Cygnus olor) on water, Bavaria, Germany, February.

Pal Hermansen / Aerial view of river and swans, South West Iceland, June 2014.

Markus Varesvuo / Whooper Swan (Cygnus cygnus) standing in snowfall,Hokkaido, Japan, February

Matthew Maran / Mute swans (Cygnus olor) Highgate Ponds, Hampstead Heath, London, UK, February.

Jussi Murtosaari / Mute Swans (Cygnus olor) foraging, southwest Finland, February.

David Woodfall / Mute Swans (Cygnus olor) swimming in Worcester city centre, during February 2014 floods, Worcester, England, UK, 10th February 2014.

David Woodfall / Mute Swan (Cygnus olor) pair in flooded agricultural land adjacent to River Severn, 10th February 2014.

Fergus Gill / Whooper Swan (Cygnus cygnus) adult bird in afternoon light. Perthshire, Scotland, March.

Konrad Wothe / Aggressive Mute swan (Cygnus olor) Upper Bavaria, Germany, Europe

Laurent Geslin / Mute Swan (Cygnus olor) feeding on Lake Leman / Geneva, Switzerland

Laurent Geslin / Mute Swans (Cygnus olor) on shore of Lake Leman / Geneva at night, Switzerland

Laurent Geslin / Mute Swan (Cygnus olor) with cygnet, Lake Leman / Geneva, Switzerland

Laurent Geslin / Mute swan (Cygnus olor) inquisitive juvenile on Lake Geneva, Geneva, Switzerland

Laurent Geslin / Mute swan (Cygnus olor) grooming. Walthamstow reservoir, London, UK

Laurent Geslin / Mute swan (Cygnus olor) pair courting. Walthamstow reservoir, London, UK

Laurent Geslin / Mute swan (Cygnus olor) pair courting. Walthamstow reservoir, London, UK

Jussi Murtosaari / Whooper Swans (Cygnus cygnus) on a frozen lake, Finland, January

Ben Hall / Mute swan (Cygnus olor) stretching its wings backlit at dawn, Poynton, Cheshire, UK, December. Highly honoured in the Bird Category of the Windland Awards of Natures Best Photography Competition 2016...

Sven Zacek,Sven Zacek / Mute Swans (Cygnus olor) resting on ice after sunset. Baltic Sea, northern Estonia, March.

Ernie Janes / Mute Swan (Cygnus olor) against dark water, Felbrigg, Norfolk, November

David Pattyn / Bewick's swans (Cygnus bewickii) four in flight, Den Bosch, The Netherlands, January

John Waters / Swans (Cygnus sp) on a large water channel at sunrise with mist on the low lying pastures of Tadham Moor, Somerset Levels, Somerset, UK, March 2012

Andy Rouse / Mute swans (Cygnus olor) on river during misty sunrise, Wales, UK December

Ben Hall / Whooper swan (Cygnus cygnus) in snowfall. Martin Mere Wetlands Trust, Lancashire,UK, January. 'Animal Portraits' category, British Wildlife Photographer Awards (BWPA) competition 2012.

Guy Edwardes / 2020VISION / Mute swan (Cygnus olor) on the River Itchen at dawn, Ovington, Hampshire, England, UK, May. 2020VISION Book Plate.

Michel Poinsignon / Mute swan (Cygnus olor) two adults on water in courtship display, Lorraine, France, January.

Danny Green / 2020VISION / Whooper Swan (Cygnus cygnus) stretching its wings on water. Caerlaverock WWT, Scotland, Solway, UK, January.

Danny Green / 2020VISION / Whooper Swan (Cygnus cygnus) in flight. Caerlaverock WWT, Scotland, Solway, UK, January.

Danny Green / 2020VISION / Whooper Swans (Cygnus cygnus), ducks and wigeon feeding in the estuary, Caerlaverock WWT, Scotland, Solway, UK, January.

Danny Green / 2020VISION / Whooper Swans (Cygnus cygnus) in flight, Caerlaverock WWT, Scotland, Solway, UK, January.

Danny Green / 2020VISION / Whooper Swan (Cygnus cygnus) in flight, Caerlaverock WWT, Scotland, Solway, UK, January.

Danny Green / 2020VISION / Whooper Swans (Cygnus cygnus) on snow, Caerlaverock WWT, Scotland, Solway, UK, January.

Danny Green / 2020VISION / Whooper Swans (Cygnus cygnus) on snow, Caerlaverock WWT, Scotland, Solway, UK, January.

David Tipling / 2020VISION / Whooper swans (Cygnus cygnus) on Winter wheat (Triticum) crop, Cambridgeshire, England, UK, January

David Tipling / 2020VISION / Mute swan (Cygnus olor) adult with cygnets on water, Woodwalton Fen, Cambridgeshire, UK, June

Andy Rouse / 2020VISION / Mute Swan (Cygnus olor) resting, Shapwick NNR, Avalon Marshes, Somerset Levels, UK, February

Andy Rouse / 2020VISION / Mute Swan (Cygnus olor) with cygnets, Shapwick NNR, Avalon Marshes, Somerset Levels, UK, February

Fergus Gill / 2020VISION / Mute Swan (Cygnus olor) standing on ice at sunrise. Glasgow, Scotland, December.

Fergus Gill / 2020VISION / Mute Swan (Cygnus olor) taking off from flock on water. Scotland, December. Did you know? Richard the Lionheart is said to have introduced Mute Swans to Britain

Erlend Haarberg / Whooper swan (Cygnus cygnus) calling in snow, Norway, December

Markus Varesvuo / Whooper swan (Cygnus cygnus) stretching wings, Kuusamo, Finland, June

Danny Green / 2020VISION / Whooper swans (Cygnus cygnus) in flight, Caerlaverock WWT, Dumfries and Galloway, Scotland, UK. January. 2020VISION Exhibition. 2020VISION Book Plate. Did you know? Fossil records show Whooper swans w...

Ben Hall / Whooper swans (Cygnus cygnus) group in flight at dusk, Lancashire, UK December

Ben Hall / Whooper swans (Cygnus cygnus) in flight at dusk, Lancashire, UK

Laurie Campbell / Mute swan (Cygnus olor) on River Tweed at sunset, Berwickshire, Scotland, January 2009

Laurie Campbell / Mute swans (Cygnus olor) newly hatched cygnets on pond, Yetholm Loch Scottish Wildlife Trust Reserve, Roxburghshire, Scotland, May

Robin Chittenden / Mute swan (Cygnus olor) on water, Wheatfen, Norfolk, UK, November

Linda Pitkin / 2020VISION / Mute Swan (Cygnus olor) swimming in harbour, viewed from underwater, St Abbs (St Abbs and Eyemouth Voluntary Marine Reserve), Berwickshire, Scotland, UK, October 2011. Did you know? In Scotland and Ir...

Edwin Giesbers / Black swan (Cygnus atratus) captive

Sven Zacek / Two Mute Swans (Cygnus olor). Estonia, Europe, February.

Peter Cairns / 2020VISION / Group of Mute swans (Cygnus olor) on a partially frozen loch, Loch Laggan, Creag Meagaidh NNR, Scotland, UK, December 2010

Konrad Wothe / Mute Swans (Cygnus olor) in front of the Alsterarkaden. Hamburg, Lower Saxony, Germany, Europe, November.

Andrew Parkinson / Whooper swan (Cygnus cygnus) adult aggressively chasing another, UK visitor between November and March. Lancashire, UK, October.

Andrew Parkinson / Mute swan portrait on water (Cygnus olor) Derbyshire, UK, April.

Andrew Parkinson / Mute swan (Cygnus olor) adult in threat posture, Derbyshire, UK, February.

Andrew Parkinson / Mute swan (Cygnus olor) adult emerges serenely from a thick mist into dawn sunlight, Derbyshire, UK, May.

Andrew Parkinson / Mute swan (Cygnus olor) drinking from the surface of a frozen lake, Derbyshire, UK, March.

Andrew Parkinson / Mute swan (Cygnus olor) portrait on water at dawn, Derbyshire, UK, February.

Andrew Parkinson / Mute swans (Cygnus olor) pair of adults engaged in a courtship dance, Nottinghamshire, UK, February.

Ross Hoddinott / 2020VISION / Mute swan {Cygnus olor} on water with reflection, Shapwick Heath (Somerset Wildlife Trust) Nature Reserve, Somerset Levels, Somerset, UK. March

Grzegorz Lesniewski / Whooper Swans (Cygnus cygnus) in courtship display on meadows. Odra River, Silesia, Poland, January.

Ernie Janes / Mute swan (Cygnus olor) on the River Ant at sunset, How Hill, Norfolk, UK, Winter

Ernie Janes / Two male Mute swans (Cygnus olor) displaying on water in territorial dispute, UK

Guy Edwardes / 2020VISION / Mute swan (Cygnus olor) and cygnets on water, Westhay Moor SWT reserve, Somerset Levels, Somerset, England, UK, JUne 2011

Guy Edwardes / 2020VISION / Mute swans (Cygnus olor) and cygnets on rhyne, King's Sedgemoor, Somerset Levels, Somerset, England, UK, June 2011

Paul Hobson / Bewick's swan (Cygnus columbianus bewickii) flying across a full moon, UK, February 2011