David Tipling / Eurasian magpies (Pica pica) five gathering prior to going to roost Hortobagy National Park, Hungary January

David Perpinan / Oystercatcher (Haematopus ostralegus) incubating eggs on nest, alarm calling as a predator flies overhead, Scotland,UK, June.

John Waters / Close-up of a Coot (Fulica atra) walking on ice, Greylake RSPB Reserve, Somerset Levels, England, UK, February.

Eric Dragesco / Wild Snow leopard (Uncia uncia) feeding on a kill hidden behind a rock, with a Eurasian magpie (Pica pica) in the foreground, Altai Mountains, Mongolia, February.

Michel Poinsignon / Black headed gull (Chroicocephalus ridibundus) taking off, detail of legs and water droplets, Pusztaszer, Hungary, April

Jussi Murtosaari / Common magpies (Pica pica) perched on frost covered branches, Jvaskyla, Finland, January.

Markus Varesvuo / Dippers (Cinclus cinclus) fighting in snow, Kuusamo, Finland, March. Second Place in the Telephoto Lens Category of the Terre Sauvage Nature Images Awards competitiion 2015.

Sven Zacek / Ravens (Corvus corax) fighting in bog during snowfall, Tartumaa, Estonia. December.

Bence Mate / Hooded crow (Corvus coronix) and Eurasian Magpie (Pica pica) waiting to scavenging White tailed eagle's (Haliaeetus albicilla) food, Pusztazer, Hungary.

Anup Shah / Eastern white-bearded wildebeest (Connochaetes taurinus) herd running. Masai Mara National Reserve, Kenya. Taken with remote wide angle camera.

Ernie Janes / Oystercatcher (Haematopus ostralegus) footprints on sand at low tide, Norfolk, England, UK, November.

Jabruson / Chimpanzee (Pan troglodytes schweinfurthii) in cage, confiscated from poachers, housed in Epulu, Okapi Wildlife Reserve, Orientale Province, North-East, Democratic Republic of Congo

Ernie Janes / Oyster Catcher (Haematopus ostralegus) in tulip (Tulipa) field, North Norfolk, May 2013

Edwin Giesbers / Common tree frog {Hyla arborea} climbing vegetation 'doing the splits', the Netherlands

Edwin Giesbers / Common tree frog {Hyla arborea} on vegetation, the Netherlands

Edwin Giesbers / Common tree frog (Hyla arborea) silhouette viewed through leaf, the Netherlands

Wild Wonders of Europe / Widstrand / Common frog (Rana temporaria) close-up, Yli-Vuoki old forest reserve, Suomussalmi, Finland, September 2008

Wild Wonders of Europe / Widstrand / Common frog (Rana temporaria) close-up, Yli-Vuoki old forest reserve, Suomussalmi, Finland, September 2008

Wild Wonders of Europe / Widstrand / Common frog (Rana temporaria) head, Yli-Vuoki old forest reserve, Suomussalmi, Finland, September 2008

Wild Wonders of Europe / Widstrand / Common frog (Rana temporaria) close-up, Yli-Vuoki old forest reserve, Suomussalmi, Finland, September 2008

Dietmar Nill / Common vampire bat {Desmodus rotundus} feeds off blood from bird's foot. Central America

Fiona Rogers / Eastern chimpanzee (Pan troglodytes schweinfurtheii) baby aged 3 weeks hand and foot close-up . Gombe National Park, Tanzania. September 2014.

Mike Read / Eurasian oystercatcher (Haematopus ostralegus) flock in flight. Snettisham RSPB Reserve, The Wash, Norfolk, England, UK. August.

Eric Baccega / Common hippopotamus (Hippopotamus amphibius) foot from below, underwater. Beauval Zoo Parc, France. Captive.

David Woodfall / Oystercatcher (Haematopus ostralegus) settling down on eggs in in Machair, Scotland, UK, June.

David Woodfall / Oystercatcher (Haematopus ostralegus) settling down on eggs in machair, Scotland, UK, June.

David Woodfall / Oystercatcher (Haematopus ostralegus) walking over Black Oats (Avena strigosa) growing in strips on cultivated Machair, Scotland, UK, June.

David Woodfall / Strips of ploughed Machair, farmed by crofters and vital habitat for breeding Little terns (Sterna albifrons ) and Oystercatcher (Haematopus ostralegus) and Dunlin (Calidris alpina). North Uist, Scotl...

Andy Rouse / Magpie (Pica pica) flying. UK. October.

Andy Rouse / Magpie (Pica pica) flying. UK. October.

Ernie Janes / Magpie (Pica pica) perched in Apple tree (Malus sp) Titchwell, Norfolk, England, UK. May.

Pedro Narra / Moorish gecko (Tarentola mauritanica) close up of foot, Sado Estuary, Portugal. April

Nick Upton / Common / Eurasian crane (Grus grus) pair 'Monty' and 'Sedge' with their young chick, being mobbed by an aggressive Avocet (Recurvirostra avosetta) for approaching too close to its nest...

Nick Upton / Avocet (Recurvirostra avosetta) harassing Common / Eurasian crane (Grus grus) 'Sedge' and her chick near the Avocet's nest site in marshland pool, Slimbridge, Gloucestershire, UK, June 201...

Nick Upton / Oystercatcher (Haematopus ostralegus) passing small Earthworm (Lumbricus terrestris) it has caught on the grassy margins of lake to its developing chick, Gloucestershire, UK, June.

Nick Upton / Oystercatcher (Haematopus ostralegus) chick watching and waiting to be fed by parent as it forages for invertebrate food on the grassy margins of lake, Gloucestershire, UK, June.

Nick Upton / Moorhen (Gallinula chloropus) walking in the margins of shallow lake, Gloucestershire, UK, October.

Nick Upton / Oystercatchers (Haematopus ostralegus) males piping to court a nearby female on pastureland, Gloucestershire, UK, February.

Andy Sands / Magpie (Pica pica) standing on lawn after light snowfall, Buckinghamshire, England, UK, February

Philippe Clement / Common pied oystercatcher / Eurasian oystercatcher (Haematopus ostralegus) with blunt bill tip typical for mussel hammerers, Shetland Islands, Scotland, UK, May

Philippe Clement / Common pied oystercatchers / Eurasian oystercatcher (Haematopus ostralegus) pair on dry stone wall, Shetland Islands, Scotland, UK, May

Nick Garbutt / Snow leopard (Panthera uncia) female with cub feeding on kill - a domestic yak calf (Bos grunniens) with scavenging magpies (Pica pica). Ladakh Range, Western Himalayas, Ladakh, India.

Nick Garbutt / Snow leopard (Panthera uncia) female with older cub feeding on kill - a domestic yak calf (Bos grunniens) with scavenging magpies (Pica pica). Ladakh Range, Western Himalayas, Ladakh, India.

David Tipling / Eurasian oystercatcher (Haematopus ostralegus) feeding chick Unst, Shetland, Scotland, UK.June

David Tipling / Birders watching Knot (Calidris canutus) and Oystercatchers (Haematopus ostralegus) at high tide over the Wash at RSPB Snettisham Reserve Norfolk, England, UK. November

David Tipling / Eurasian magpies (Pica pica) gathering prior to going to roost Hortobagy National Park, Hungary January

David Tipling / Waders, Oystercatchers (Haematopus ostralegus) and Red knot (Calidris canutus) out on the Wash, massing together as the tide pushes in prior to high tide and roosting, Snettisham Norfolk, England, UK....

David Tipling / Waders, Oystercatchers (Haematopus ostralegus) and Red knot (Calidris canutus) out on the Wash, massing together as the tide pushes in prior to high tide and roosting, Snettisham Norfolk, England, UK....

David Tipling / Waders, Oystercatchers (Haematopus ostralegus) and Red knot (Calidris canutus) out on the Wash, massing together as the tide pushes in prior to high tide and roosting, Snettisham Norfolk, England, UK....

David Tipling / Eurasian oystercatcher (Haematopus ostralegus) parent feeding chicks in the rain with worms, Holme Norfolk, England, UK. June.

David Perpinan / Oystercatcher (Haematopus ostralegus) arriving at its nest in a roundabout, Scottish Borders, Scotland, UK, June.

Bernard Castelein / Magpie (Pica pica) drinking, Brasschaat, Belgium. June

Edwin Giesbers / Eagle owl (Bubo bubo) talons on log. Captive, Netherlands. August

Bernard Castelein / Rainbow lizard (Agama agama), Gambia.

Staffan Widstrand / Golden eagle (Aquila chrysaetos) male in conflict with Magpie (Pica pica) group, Kalvtrask, Vasterbotten, Sweden. December.

Andy Trowbridge / Adult Pied stilt / Black winged stilt (Himantopus himantopus) walking in shallow water. Lake Ellesmere, New Zealand. November.

Sylvain Cordier / Black-winged stilt (Himantopus himantopus) Bera, Rajasthan, India.

Loic Poidevin / Eurasian magpie (Pica pica) on branch. Vendee, Pays-de-la-Loire, France. March.

Andres M. Dominguez / Iberian lynx (Lynx pardinus) with Magpie (Pica pica) behind, Sierra de Andujar Natural Park, Jaen, Spain, September.

Ernie Janes / Oystercatcher (Haematopus ostralegus) flying on to mussel bed as tide recedes Norfolk, England, UK. November.

Ernie Janes / Magpie (Pica pica) taking off from hedgerow, Titchwell, Norfolk, England, UK, March.

Ernie Janes / Magpie (Pica pica) perched in hedgerow, Titchwell, Norfolk, England, UK, February.

Ernie Janes / Magpie (Pica pica) perched in hedgerow, Titchwell, Norfolk, England, UK, February.

Ernie Janes / Magpie (Pica pica) perched in hedgerow, Titchwell, Norfolk, England, UK, February.

Fiona Rogers / Eastern chimpanzee (Pan troglodytes schweinfurtheii) female 'Sandi' aged 40 years hand holding foot.Gombe National Park, Tanzania. September 2013.

Konrad Wothe / Oystercatcher (Haematopus ostralegus) calling, Eastfriesian Islands National Park, North Sea, Germany, June.

Eric Baccega / Chimpanzee (Pan troglodytes schweinfurthii) male, scratching its leg, National Park, Uganda.

Edwin Giesbers / European bison (Bison bonasus) with Magpie (Pica pica) Zuid-Kennemerland National Park, the Netherlands. Reintroduced species ; magpie;

Roger Powell / Pair of Eurasian Oystercatchers (Haematopus ostralegus) courting and walking away from each other on their breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Pair of Eurasian Oystercatchers (Haematopus ostralegus) greeting each other on their breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Pair of Eurasian oystercatchers (Haematopus ostralegus) courting and walking in tandem with each other on their breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Pair of Eurasian Oystercatchers (Haematopus ostralegus) calling and greeting each other on their breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Eurasian Oystercatcher (Haematopus ostralegus) guarding its breeding territory. Sandvik, Porsanger fjord, Finmark, Norway

Roger Powell / Eurasian magpie (Pica pica) cleaning its beak on a fencepost. Protecting its eye by lowering the nictitating membrane. Druridge Bay, Northumberland, UK, April.

Chris Gomersall / Flock of Common cranes (Grus grus) at roost at dawn on a misty morning. Hula Valley, Israel. November

Chris Gomersall / Flock of Common cranes (Grus grus) at roost at dawn on a misty morning. Hula Valley, Israel. November

Chris Gomersall / Flock of Common cranes (Grus grus) at roost at dawn on a misty morning. Hula Valley, Israel. November

Fabrice Cahez / Eurasian oystercatcher (Haematopus ostralegus) Brittanny, France, October.

Nick Upton / Oystercatcher (Haematopus ostralegus) pair mating and calling on the banks of a shallow freshwater lake, Gloucestershire, UK, February.

Bruno D'Amicis / Remains of Red deer (Cervus elaphus) killed and eaten by Apennine wolves (Canis lupus italicus) Central Apennines, Abruzzo, Italy. February.

Staffan Widstrand / Wild Wonders of China / Oriental magpie (Pica serica) near Yushu, Tibetan Plateau, Qinghai, China

Andy Trowbridge / Two Adult Pied stilts / Black winged stilts (Himantopus himantopus) standing in shallow water. Lake Ellesmere, New Zealand. July.

Loic Poidevin / Eurasian oystercatcher (Haematopus ostralegus) flock taking off, Marais Breton, Vendée, France, January.

Loic Poidevin / Eurasian magpie (Pica pica) feeding on boar carcass, Sierra de Guadarrama, Spain, January.

Loic Poidevin / Eurasian magpie (Pica pica) perched, Sierra de Guadarrama, Spain, January.

Philippe Clement / Oystercatchers (Haematopus ostralegus) and Sanderlings (Calidris alba) feeding and taking off from beach in winter, Belgium, December.

Philippe Clement / Oystercatcher (Haematopus ostralegus) standing in shallow water before taking off, Belgium, May.

Dave Bevan / Raven (Corvus corax) and Magpies (Pica pica) feeding on a dead sheep, Carmarthenshire, Wales, UK. November.

Dave Bevan / Raven (Corvus corax) and Magpies (Pica pica) feeding on a dead sheep, Carmarthenshire, Wales, UK. November.

Dave Bevan / Raven (Corvus corax) and Magpies (Pica pica) feeding on a dead sheep, Carmarthenshire, Wales, UK. November.

Dave Bevan / Magpie (Pica pica) feeding on a dead sheep, Carmarthenshire, Wales, UK. November.

Dave Bevan / Magpie (Pica pica) feeding on a dead sheep, Carmarthenshire, Wales, UK. November.

Dave Bevan / Two juvenile Barn owls (Tyto alba) amongst hay bales adjacent to nest box in a barn, one grooms its foot and ruffles its feathers, Carmarthenshire, Wales, UK. September.

Dave Bevan / Magpie (Pica pica) drinking from a pond, Bedfordshire, England, UK, June.