Sebastian Kennerknecht / Minden / American Bison (Bison bison) female in winter, Yellowstone National Park, Wyoming

Sergey Gorshkov / Minden / Northern Goshawk (Accipiter gentilis) feeding on Black Grouse (Tetrao tetrix) female in winter, Finland

Mark Raycroft / Minden / White-tailed Deer (Odocoileus virginianus) buck in snowfall, North America

Duncan Usher / Wild Boar (Sus scrofa) piglets in snow, Sababurg, Hessen, Germany

Duncan Usher / Wild Boar (Sus scrofa) sow with piglets in snow, Sababurg, Hessen, Germany

Mateusz Piesiak / Bramblings (Fringilla montifringilla) feeding on sunflower seeds in a field that could not be cut due to high water levels, Lower Silesia, Poland. Emotion'Ailes Photography Competition 2021, Categ...

Eduardo Blanco / Snow covered trees in the Sotos del Alfaro Natural Reserve, Alfaro, La Rioja province, Spain. January.

Klein & Hubert / Siberian / Amur tiger (Panthera tigris altaica) walking in snow at sunrise, captive, occurs Far East and Northeast China.

Danny Green / Goldfinch (Carduelis carduelis) feeding on teasel in falling snow, Leicestershire, UK, February.

Oscar Dewhurst / Mute swan (Cygnus olor) swimming through ice. Richmond Park, London, England, UK. December

David Noton / Dog walker on Vartenham Hill on a frosty New Year's Day, Milborne Port, Somerset, Egland. January 2021.

Milan Radisics / Female Red fox (Vulpes vulpes) walking along tree trunk in heavy fog at night. Light source behind the subject creates dramatic volumetric lighting. Vertes Mountains, Hungary.

Guy Edwardes / Durdle Door in winter during Storm Emma, Jurassic Coast World Heritage Site, Isle of Purbeck, Dorset, England, UK. March 2018

Erlend Haarberg / Mountain hares (Lepus timidus) fighting in snow at night, Vauldalen, Norway, April.

Erlend Haarberg / Mountain hares (Lepus timidus) fighting in snow at night, Vauldalen, Norway, April.

Tony Wu / Japanese dwarf flying squirrel (Pteromys volans orii) gliding through snowy forest, Hokkaido, Japan.

Andy Rouse / Blue tit (Cyanistes caeruleus) in winter garden, Wales, UK, January

Andy Rouse / European Robin (Erithacus rubecula) in snowy garden, Wales, UK, January.

Andy Rouse / European Robin (Erithacus rubecula) in frosty garden, Wales, UK, January.

David Pattyn / Common starling (Sturnus vulgaris) murmuration, flock gathering above trees before landing at winter roost. The Netherlands. February.

David Pattyn / Common starling (Sturnus vulgaris) murmuration, flock pursued by Peregrine falcon (Falco peregrinus) before landing at winter roost. The Netherlands. February 2020.

David Pattyn / Common starling (Sturnus vulgaris) murmuration, flocks gathering above trees before landing at winter roost. The Netherlands. February 2020.

David Pattyn / Common starling (Sturnus vulgaris) murmuration, flock gathering in butterfly shape before landing at winter roost. The Netherlands. February.

David Pattyn / Common starling (Sturnus vulgaris) murmuration, flock gathering above trees before landing at winter roost, blurred motion. The Netherlands. February.

David Pattyn / Common starling (Sturnus vulgaris) murmuration, flock gathering above trees before landing at winter roost. The Netherlands. February.

Jack Dykinga / Moran Point with snow on the pinnacles, Grand Canyon National Park, Arizona, USA.

Jack Dykinga / New snow on Pinyon pines ( Pinus edulis) in morning light. Grand Canyon National Park, Arizona, USA

Mateusz Piesiak / Eurasian wolf (Canis lupus lupus) pack in snow, forest in Bialowieza National Park. Poland. January 2019. Received Honour award at the Mont Photo 2020 Competition.

David Allemand / Snow-covered taiga forest in Finland. Honoured in the MontPhoto awards 2020.

Fabrice Cahez / Common crane (Grus grus) flock feeding in field in snow, Champagne, France, February.

Andres M. Dominguez / Crested tit (Lophophanes cristatus) about to land on Elmleaf blackberry (Rubus ulmifolius) plant, Sierra de Grazalema Natural Park, Southern Spain, January.

Stefan Christmann / Emperor penguin (Aptenodytes fosteri) male peering out, looking over the huddle during polar night, Antarctic winter, Atka Bay, Antarctica. July. Bookplate.

Markus Varesvuo / Great Grey Owl (Strix nebulosa) flying directly overhead, Kuhmo Finland February.

Ben Hall / Mountain hare (Lepus timidus) on snow covered moorland at last light, Derbyshire, UK.

Lucas Bustamante / Monarch butterflies (Danaus plexippus) flying during a warm morning. When the overwintering period draws to an end large numbers become active. Michoacan, Mexico, February.

Pal Hermansen / RF - Double exposure shot of sheet of ice on Greenland Sea with snow covered mountains in background. Krossfjorden, Svalbard, Norway. April 2018. (This image may be licensed either as rights managed o...

Marie Read / Blue jay (Cyanocitta cristata) in flight carrying an acorn that it will cache for winter food supply, New York, USA, October.

Danny Green / Arctic fox (Vulpes lagopus) walking in heavy snow. Hornstrandir Nature Reserve, Iceland. February.

Danny Green / Arctic fox (Vulpes lagopus) resting in snow. Hornstrandir Nature Reserve, Iceland, February.

Danny Green / Coyote (Canis latrans) standing in snow, dwarfed by frosty trees. Yellowstone National Park, USA, January.

Danny Green / Bison (Bison bison) in snow, at woodland edge with frost covered trees. Yellowstone National Park, USA, January 2020.

Danny Green / Bald eagle (Haliaeetus leucocephalus), two perched on rocks in front of frozen waterfall. Alaska, USA, February.

Ross Hoddinott / Robin (Erithacus rubecula) in snow, Broxwater, Cornwall, UK. March.

Erlend Haarberg / Reindeer herders on snowmobiles, moving a large flock of semi-domesticated Reindeer (Rangifer tarandus), to the reindeer calving areas in the Jotunheimen National Park, Norway. April.

Orsolya Haarberg / Photographers in snow-covered mountain landscape. Orsolya Haarberg and Erlend Haarberg. Vaga, Norway. March 2020.