Pal Hermansen / Close up of Goshawk (Accipiter gentilis) feathers, with one foot held up, Trondelag, Norway. Winner of the Attention to Detail Category of the Bird Photographer Competition 2019.

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

Ingo Arndt / Close up of claw of Northern lobster {Homarus americanus}

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.

Ole Jorgen Liodden / Polar bear (Ursus maritimus) waving standing on hind legs with paws raised, Svalbard, Norway, September.

Markus Varesvuo / Head portrait of juvenile Northern Goshawk (Accipiter gentilis) drinking, Hungary, May. Magic Moments book plate.

Roy Mangersnes / Brunnich's guillemot (Uria lomvia) diving into sea, Spitsbergen, Svalbard, Norway, July.

Erlend Haarberg / Mountain hares (Lepus timidus) boxing, Vauldalen, Sor-Trondelag, Norway, May.

Jussi Murtosaari / European brown bear (Ursus arctos arctos) young cub, northern Finland, July.

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

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

Paul Hobson / Gannet, (Morus bassanus) rear view, flying into head wind, tail used as break, Yorkshire coastline, England. UK. May.

Wild Wonders of Europe / Lilja / Cyprus pied wheatear (Oenanthe cypriaca) perched on barbed wire singing, Northern Cyprus, April 2009

Tom Vezo / Northern shoveler duck {Anas clypeata} female landing on water Arizona, USA

Tom Vezo / Northern shoveler duck pair landing {Anas clypeata} Tucson, Arizona, USA

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

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...

Suzi Eszterhas / Oriental pied hornbill (Anthracoceros albirostris) Sabah, Malaysia

Markus Varesvuo / Lesser spotted woodpecker (Dendrocopos minor) female on tree trunk. Helsinki, Finland. February.

Markus Varesvuo / Lesser spotted woodpecker (Dendrocopos minor) female on tree trunk. Helsinki, Finland. February.

Staffan Widstrand / Great spotted woodpecker (Dendrocopos major) male on snowy tree trunk. Kalvtrask, Vasterbotten, Lapland, Sweden. January.

Patricio Robles Gil / Oriental pied hornbill (Anthracoceros albirostris) in a banana tree, Kaziranga National Park, Assam, India.

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

Staffan Widstrand / Arctic fox (Vulpes lagopus), juvenile scratching whilst lying down. Dovrefjell National Park, Norway. September.

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

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 / 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.

Staffan Widstrand / Wild Wonders of China / Oriental pied hornbill (Anthracoceros albirostris) male with food outside nesting hole, Tongbiguan nature reserve, Dehong Prefecture, Yunnan Province, China. April

Staffan Widstrand / Wild Wonders of China / Oriental Pied hornbill (Anthracoceros albirostris) with berry outside nest hole, Tongbiguan Nature Reserve, Dehong Prefecture, Yunnan Province, China, April.

Staffan Widstrand / Wild Wonders of China / Oriental pied hornbill (Anthracoceros albirostris) male taking off from nest hole, Tongbiguan Nature Reserve, Dehong Prefecture, Yunnan Province, China. April

Staffan Widstrand / Wild Wonders of China / Oriental pied hornbill (Anthracoceros albirostris) taking off from nest hole, Tongbiguan Nature Reserve, Dehong Prefecture, Yunnan Province, China. April

Staffan Widstrand / Wild Wonders of China / Oriental Pied hornbill (Anthracoceros albirostris) male landing at nest hole, Tongbiguan Nature Reserve, Dehong Prefecture, Yunnan Province, China, April.

Staffan Widstrand / Wild Wonders of China / Oriental Pied hornbill (Anthracoceros albirostris) male bringing berry to nest, Tongbiguan Nature Reserve, Dehong Prefecture, Yunnan Province, China, April.

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

Staffan Widstrand / White-tailed sea eagle (Haliaeetus albicilla) view of talons and tail feathers as it flies overhead, Kalvtrask, Vasterbotten, Sweden. December.

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

Staffan Widstrand / Great spotted woodpecker (Dendrocopos major) on tree trunk, Kalvtrask, Vasterbotten, Sweden. December.

Staffan Widstrand / Red squirrel (Sciurus vulgaris) feeding, in winter pelage, Kalvtrask, Vasterbotten, Sweden. December.

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

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

Markus Varesvuo / Great spotted woodpecker (Dendrocopos major) on snowy tree trunk, Kuusamo, Finland, January.

Markus Varesvuo / Great spotted woodpecker (Dendrocopos major) three flying in snowy woodland,, Kuusamo, Finland, January.

Markus Varesvuo / Great spotted woodpecker (Dendrocopos major) on snowy tree trunk, Kuusamo, Finland, January.

Markus Varesvuo / Great spotted woodpecker (Dendrocopos major) flying past snow covered trees, Kuusamo, Finland, January.

Markus Varesvuo / Great spotted woodpecker (Dendrocopos major) in flight past snowy tree, Kuusamo, Finland, February.

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.

Jussi Murtosaari / Great spotted woodpecker (Dendrocopos major), adult male, Finland, October.

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

Franco Banfi / Back paws of Polar bear (Ursus maritimus) sleeping on ice,Spitsbergen, Svalbard, Norway, Arctic Ocean.

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

Mary McDonald / Pied lapwing (Vanellus cayanus) foraging on river bank, Northern Pantanal, Brazil. August.

Jussi Murtosaari / Lesser spotted woodpecker (Dendrocopos minor), male in nest, Finland, June.

Jussi Murtosaari / Lesser spotted woodpecker (Dendrocopos minor), male at nest hole, Finland, June.

Jussi Murtosaari / Lesser spotted woodpecker (Dendrocopos minor), male, Finland, March.

Jussi Murtosaari / Lesser spotted woodpecker (Dendrocopos minor), male in flight, Finland, March.

Jussi Murtosaari / Pied bush chat (Saxicola caprata) Finland, May.

Jussi Murtosaari / Bush chat (Saxicola caprata), perched, Finland, May.

Andy Trowbridge / European Pied Flycatcher (Ficedula hypoleuca) perched branch. Norway. June.

Andy Trowbridge / Great Spotted Woodpecker (Dendrocopus major) searching for food in snow, during snowfall. Norway. March.

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

Frederique Olivier / Northern sea otter (Enhydra lutris kenyoni) grooming its paws, Kachemak Bay, Alaska, USA.

Frederique Olivier / Close-up of a Northern sea otter (Enhydra lutris kenyoni) grooming, Kachemak Bay, Alaska, USA.

Nick Upton / Slow motion view of Oystercatchers (Haematopus ostralegus) flying in to join others resting and preening at a roost site, Cornwall, England, UK, April.

Nick Upton / Oystercatchers (Haematopus ostralegus) resting and preening at a roost site, with a Shag (Phalacrocorax aristotelis) holding its wings out to dry next to them, Cornwall, England, UK, April.

Nick Upton / Slow motion clip of an Oystercatcher (Haematopus ostralegus) struggling to climb up a slope at a coastal roost site as a Shag (Phalacrocorax aristotelis) approaches and flaps its wings, England, UK,...

Nick Upton / Pair of Oystercatchers (Haematopus ostralegus) displaying to a rival on their nesting territory until it flies away, Gloucestershire, England, UK, March.

Nick Upton / Pair of Oystercatchers (Haematopus ostralegus) mating on a small island, with a resting Shelduck (Tadorna tadorna) in the background, Gloucestershire, England, UK, March.

Nick Upton / Oystercatcher (Haematopus ostralegus) probing for invertebrates in a lake, Gloucestershire, England, UK, May.

Nick Upton / Oystercatcher (Haematopus ostralegus) probing for invertebrates in a lake, Gloucestershire, England, UK, May.

Nick Upton / Oystercatcher (Haematopus ostralegus) probing for invertebrates in a lake, Gloucestershire, England, UK, May.

Nick Upton / Oystercatcher (Haematopus ostralegus) swallowing an Earthworm (Lumbricus terrestris) and foraging for more, Gloucestershire, England, UK, February.

Nick Upton / Oystercatcher (Haematopus ostralegus) pulling up an Earthworm (Lumbricus terrestris), Gloucestershire, England, UK, February.