Marie Read / Northern cardinal (Cardinalis cardinalis) male perched amid snow-covered branches, New York, USA, February.

Jeff Wilson / Pyramid of sea ice catching the first rays of the returning sun in the high Arctic, Svalbard, Spitsbergen, Norway, February 2009. Taken on location for the BBC series, Frozen Planet.

Guy Edwardes / Riisitunturi in winter with Aurora Borealis, Kuusamo, Lapland, Finland. January 2016

Ross Hoddinott / Robin (Erithacus rubecula) displaying in snow, nr Bradworthy, Devon, UK. December 2010, HIGHLY COMMENDED, ANIMAL PORTRAITS, 2011 WILDLIFE PHOTOGRAPHER OF THE YEAR COMPETITION

Markus Varesvuo / Waxwing (Bombicilla garrulus) flock on snow covered pine tree, Kuusamo, Finland, February. Fascinating birds bookplate.

Staffan Widstrand / Arctic fox (Vulpes lagopus), juvenile looking at camera, portrait, winter pelage. Dovrefjell National Park, Norway. September.

Klein & Hubert / Harp seal (Pagophilus groenlandicus) pup on ice, Gulf of St. Lawrence, Canada

Pal Hermansen / Scattered conifers with long shadows in snow, aerial shot. Golsfjell, Norway. March 2018.

Niall Benvie / Twin Birch (Betula) trees highlighted snow. Senja, Norway, February.

Theo Bosboom / Conifer trees in snowy landscape, near Baraque Michel, Belgian Ardennes, January 2010

Pal Hermansen / Red house surrounded by snow-covered trees in winter, Eastern Finnmark, Norway, November 2006.

Andy Rouse / Robin (Erithacus rubecula) perched in snow, Wales, UK (non-ex) January

Orsolya Haarberg / Norway spruce (Picea abies) trees covered in snow, Ciuc Mountains, Transylvania, Romania, January 2015.

Erlend Haarberg / Frost covered European beech tree (Fagus sylvatica) in a snow covered field framed by frosty branches, Calonda, Harghita County, Transylvania, Romania, January.

Floris van Breugel / First rays of golden sunshine hit Giant Sequoias (Sequoiadendron giganteum) covered in a winter blanket of snow and frost, Grant Grove, Sequoia / Kings Canyon National Park, California, USA November

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

Klein & Hubert / Harp seal (Pagophilus groenlandicus) pup on ice, Gulf of St. Lawrence, Canada

Steven Kazlowski / Adelie penguin (Pygoscelis Adeliae) in falling snow on the western Antarctic Peninsula, Southern Ocean

Edwin Giesbers / Red squirrel (Sciurus vulgaris) sitting upright in deep snow, Austria, Europe

Markus Varesvuo / Puffin (Fratercula arctica) portrait in the snow, Norway, March

Andy Rouse / Polar bear (Ursus maritimus) new year cub, 6 months, standing on hind legs, Svalbard, Norway (non-ex) July 2007

Steven Kazlowski / Portrait of Polar bear (Ursus maritimus) sow standing with her cub on the snow in late winter, Arctic coast of Alaska

Steven Kazlowski / Polar bear (Ursus maritimus) curious young male on the newly frozen pack ice, Beaufort Sea, off the 1002 area of the Arctic National Wildlife Refuge, North Slope, Alaska

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) pair in courtship, facing each other. Atka Bay, Antarctica. May.

Guy Edwardes / Vik i Myrdal church in winter, with full moon, Iceland. January 2015

Erlend Haarberg / RF - Two reindeer (Rangifer tarandus) running in snow, Sarek National Park, Laponia World Heritage Site, Lapland, Sweden. (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / European Robin (Erithacus rubecula) perched on snowy leaf. Wales, UK, December.

Bruno D'Amicis / Snowdrops (Galanthus nivalis) emerging through snow on forest floor. Abruzzo, Central Apennines, Italy, March.

Brent Stephenson / Young Polar bear (Ursus maritimus) walking across melting sea ice, Scott Inlet, Baffin Island, Canadian Arctic, August. Vulnerable species.

Steven Kazlowski / Two curious young Polar bears (Ursus maritimus), Barter Island, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, October 2011

Ernie Janes / Robin (Erithacus rubecula) perched on rosehip branch during snowfall. UK, December.

Markus Varesvuo / Blue tit (Parus caereleus) perched in snow, Kotka, Finland, January

Andy Rouse / Blue Tit (Cyanistes caeruleus) perched on snow covered Fir tree (Abies) branch, in a garden, Wales, UK December

Andy Rouse / Blue Tit (Parus caeruleus) perched in snow, Wales, UK, January

Hermann Brehm / Blue Tit (Parus caeruleus) on Guelder Rose branch with red berries. Bavaria, Germany, December.

Markus Varesvuo / Waxwing (Bombycilla garrulus) perching near berries, Kuusamo, Finland, November.

Aflo / Japanese tit (Parus minor) feeding on Japanese rowan (Sorus commixta) in snow, Yatsugatake, Japan, February.

Konrad Wothe / Blackbird (Turdus merula) male in winter, Bavaria, Germany, December.

Markus Varesvuo / Waxwings (Bombycilla garrulus) feeding on snow covered Rowan (Sorbus) berries, whilst in flight, Kuusamo, Finland, Scandinavia, January. Magic Moments book plate.

John Cancalosi / Male and female White-tailed deer (Odocoileus virginianus) with snowman, New York, USA, February.

Ernie Janes / Robin (Erithacus rubecula) in snow, Norfolk, England, UK, February.

TJ Rich / Chocolate working cocker spaniel in snow, Wiltshire, UK

Jouan & Rius / Snowman on Hauts Fourneaux, Ballon des Vosges Nature Park, Vosges, Lorraine, France, January 2009

Klein & Hubert / Domestic Tabby cat (Felis silvestris catus) sitting in gate with snowman, France.

Klein & Hubert / Wirehaired Dachshund sniffing snowman, French Alps, Haute-Savoie, France.

Klein & Hubert / Dachshund sitting in snow with Mont Blanc massif (French Alps) in background. Haute-Savoie, France.

Markus Varesvuo / Pine Grosbeak male (Pinicola enucleator)and traffic light Oulu, Finland, December

Lynn M. Stone / Golden Retriever pup in snow, Holland, Massachusetts, USA.