Floris van Breugel / Winter snowstorm with frost covered trees , Hurricane Ridge, Olympic National Park, Washington, USA, February 2012.

Fergus Gill / 2020VISION / Tree Sparrow (Passer montanus) Perching on a snow covered branch. Perthshire, Scotland.

Juan Carlos Munoz / Colourful water with reflections in snow, Plitvice Lakes National Park, Lika, Croatia, Europe, January 2012

Fabrice Cahez / Three wild Boar (Sus scrofa) crossing snow covered field, Vosges, France, January

Roy Mangersnes / Low clouds over the glacier, Engelskbukta, Western Spitsbergen, Svalbard, Norway, September

Gerrit Vyn / Liberty Bell Mountain at Washington Pass in the North Cascades, in winter, Okanogan National Forest, Washington, USA, November 2011

Gerrit Vyn / Kangaroo Ridge in the North Cascades, in winter, Okanogan National Forest, Washington, USA, November 2010

Mark Hamblin / 2020VISION / Two Blue tit (Parus caeruleus) adults in winter, perched on twig with frozen crab apples, Scotland, UK, December 2010

Mark Hamblin / 2020VISION / Adult Robin (Erithacus rubecula) in winter, perched on twig with frozen crab apples, Scotland, UK, December 2010. Did you know? The association of Robins with Christmas came from the postmen, known as...

Mark Hamblin / 2020VISION / Female Blackbird (Turdus merula) perched in crab apple tree in winter, Scotland, UK, December 2010

Mark Hamblin / 2020VISION / Adult Robin (Erithacus rubecula) perched in frosty tree in winter, Scotland, UK, December 2010

Mark Hamblin / 2020VISION / Adult Robin (Erithacus rubecula) and adult Blue tit (Parus caeruleus) in winter, perched on twig with frozen crab apples, Scotland, UK, December 2010

Mark Hamblin / 2020VISION / Robin (Erithacus rubecula) adult perched in winter with feather fluffed up, Scotland, UK, December

David Tipling / 2020VISION / Large flock of Pink-footed geese (Anser brachyrynchus) flying from overnight roost at dawn, The Wash, Snettisham, Norfolk, UK, January 2011

Andrew Parkinson / Yellowhammer (Emberiza citrinella) perched on frost covered branches, Dumfries and Galloway, Scotland, UK, December.

Andrew Parkinson / Robin (Erithacus rubecula) perched on frost covered branches, Dumfries and Galloway, Scotland, UK, December.

Nick Upton / 2020VISION / Juvenile Common / Eurasian cranes (Grus grus) released by the Great Crane Project onto the Somerset Levels and Moors, on frozen snow covered pastureland. Somerset, UK, December 2010.

Stefan Huwiler / Linden tree (Tilia sp.) with heavy frost on small hill. Switzerland, Europe, December.

George Sanker / Moose (Alces alces) bull male walking through frosty grass. Grand Teton National Park, Wyoming, USA, October.

Grzegorz Lesniewski / Dawn rising behind Polonina Carynska. Bieszczady National Park, the Carpathians, Poland, October 2009.

David Noton / Snow on the trees branches. Cadbury Castle, Somerset, England, January 2010.

Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) perched on a thin twig, possibly looking for buds to eat. Kuusamo, Finland, February.

Markus Varesvuo / Hazel Grouse (Tetrastes bonasia) perched on a thin twig, possibly looking for buds to eat. Kuusamo, Finland, February.

Markus Varesvuo / Common Crossbill (Loxia curvirostra) male and female greeting, Kuusamo, Finland, February.

Markus Varesvuo / Common Crossbill (Loxia curvirostra) female perched on hoar-frost covered branches. Kuusamo, Finland, February.

David Noton / Snow-covered Piano Grande in winter. Monti Sibillini National Park, Umbria, Italy, February 2010.

David Noton / Preci at dawn in winter. Valnerina, Monti Sibillini National Park, Umbria, Italy, February 2010.

David Noton / The road across the Piano Grande in winter. Monti Sibillini National Park, Umbria, Italy, February 2010.

Ernie Janes / Snow on stubble field at dusk with Southrepps Church in the background, North Norfolk, UK, Winter

Peter Cairns / 2020VISION / Volunteer planting native woodland as part of The National Forest's planting day, Moira, Derbyshire, UK, November 2010. 2020VISION Book Plate.

Markus Varesvuo / Waxwing (Bombycilla garrulus) perching on frosty berries. Kuusamo, Finland, January. Magic Moments book plate, page 91.

Marie Read / Tree covered with rime ice standing in snow-covered field, aginst blue sky with clouds, Ithaca, New York, USA. January 2010.

Marie Read / Tree covered with rime ice standing in snow-covered field, Ithaca, New York, USA. January 2010.

Edwin Giesbers / Mute Swan (Cygnus olor) standing on frosty grass. The Netherlands, March.

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

Fergus Gill / Goldfinch (Carduelis carduelis) feeding on frozen Teasels. Perthshire, Scotland, Dec

Alex Hyde / Low winter sun shining through freezing fog, Bonsall Moor, Peak District National Park, Derbyshire, UK, December 2009.

Orsolya Haarberg / Winter landscape with Nidelva river, Klbu, Sor-Trondelag, Norway, December 2005

Orsolya Haarberg / Spruce trees covered in hard frost, coniferous forest in winter, Harghita, Romania.

Ernie Janes / Domestic ferret (Mustela putorius furo) being taken out for a walk in winter, Southrepps, Norfolk, UK, November 2008

Bryan and Cherry Alexander / Girls looking through a window from inside their home in Verkhoyansk, Yakutia ,Siberia, Russia, 1999.

Floris van Breugel / Ponderosa Pine trees (Pinus ponderosa) coated in frost, during heavy snowfall, Deschutes National Forest, Oregon, USA, December 2009

Ross Hoddinott / Tree and road sign in the snow, icy, wintry roads, early morning light, nr Bradworthy, Devon, UK. December 2010

Ross Hoddinott / Road and road sign in snow, early morning light, nr Bradworthy, Devon, Uk. December 2010

Ross Hoddinott / Row of trees, after hoar frost, early morning light, nr Bradworthy, Devon, Uk. December 2010

Ross Hoddinott / Row of trees, after hoar frost, early morning light, nr Bradworthy, Devon, Uk. December 2010

Ross Hoddinott / Ivy leaves (Hedera sp) in snow and heavy frost, Bradworthy, Devon, UK. December 2010

Nick Upton / 2020VISION / Common / Eurasian cranes (Grus grus) small flock of juveniles taking flight over the frozen, snow covered pastureland on a foggy winter morning. These Cranes were released by the Great Crane Project...

Nick Upton / 2020VISION / RSPB volunteers Jane Munstermann and Derek Stevenson observing and radio-tracking Common / Eurasian cranes (Grus grus) released by the Great Crane Project onto the Somerset Levels and moors, on a fogg...

Nick Upton / Mute swans (Cygnus olor) flying past flock of Common / Eurasian juvenile cranes (Grus grus) released by the Great Crane Project onto the Somerset Levels and Moors, foraging on frozen pastureland on a...

Peter Cairns / Capercaillie (Tetrao urogallus) male displaying in pine forest, Cairngorms NP, Scotland, UK, January

Jack Dykinga / Cacti in snow with fog at sunrise, Saguaro National Park, Arizona, USA

Andy Rouse / European Robin (Erithacus rubecula) perched in snow, Wales, UK, January

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

Andy Rouse / Coal Tit (Periparus ater) perched in snow, Wales, UK, January

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

Andy Rouse / European Robin (Erithacus rubecula) perched in snow, Wales, UK, January

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

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

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

Andy Rouse / Blue tit (Parus caeruleus) perched in snow, Wales, UK (non-ex) January

Andy Rouse / Blue tit (Parus caeruleus) perched in snow, Wales, UK (non-ex) January

Rolf Nussbaumer / Crested Tit {Lophophanes cristatus} adult on frozen branch in winter, minus 15 Celsius, Switzerland

Duncan Mcewan / Frost and snow on mixed woodland Inverness-shire, Scotland, UK

Pete Oxford / Snow covered trees in Trumsingla Pass, 12,500 feet Eastern Bhutan

Duncan Mcewan / Frost and snow landscape, River Glass, Strathglass, Inverness-shire, UK

John Cancalosi / Barnacle Geese {Branta leucopsis} standing on ice UK

XI ZHINONG / Wild White-Lipped Deer (Przewalskium albirostris) male, Kekexili, Qinghai, Tibetan Plateau, China. Vulnerable species.

Jeff Vanuga / Iceberg formations eroded to resemble human face in profile. Antarctica

Alex Hyde / The River Lathkill, running through Lathkill Dale SSSI National Nature Reserve, Peak District National Park, Derbyshire, UK, January.

Kirkendall-Spring / Frost covered grass and Ranger Peak, Lamar Valley, Yellowstone National Park. Wyoming, USA January

Kirkendall-Spring / Frost on grass along the Lamar River, Lamar Valley of Yellowstone National Park. Wyoming, USA, January 2012

Kirkendall-Spring / Detail of frosted grass in the Lamar Valley, Yellowstone National Park. Wyoming, USA, January

Alex Hyde / Sunrise over White Tor on Derwent Edge, looking on towards the Wheel Stones. Peak District National Park, January.

Alex Hyde / Sunrise on Derwent Edge, looking on towards the Wheel Stones. Peak District National Park, January.

Alex Hyde / Sunrise over White Tor on Derwent Edge, looking on towards the Wheel Stones. Peak District National Park, January.

Mark Hamblin / 2020VISION / Silver birch (Betula pendula) trees covered in hoar frost, with Loch Laggan in the background, Creag Meagaidh National Nature Reserve, Scotland, UK, December 2010.

Mark Hamblin / 2020VISION / Silver birch (Betula pendula) tree covered in hoar frost, Creag Meagaidh National Nature Reserve, Scotland, UK, December 2010.

Mark Hamblin / 2020VISION / Silver birch (Betula pendula) tree covered in hoar frost, Creag Meagaidh National Nature Reserve, Scotland, UK, December 2010.

Mark Hamblin / 2020VISION / Hoar frost on grass, Creag Meagaidh National Nature Reserve, Scotland, UK, December 2010.

Kerstin Hinze / Beech (Fagus sylvaticus) forest in autumn with early snow. Drackenstein, Swabian alb, Baden-Wurttemberg, Germany, October.

Kerstin Hinze / Beech (Fagus sylvaticus) forest in autumn with early snow. Drackenstein, Swabian alb, Baden-Wurttemberg, Germany, October.

Vladimir Medvedev / Close-up of the eye of a Yakut horse (Equus caballus) during a hard frost, Berdigestyakh, Yakutia, East Siberia, Russia, March.

Danny Green / Frosty River in mist. Yellowstone, United States America, February.

Danny Green / Adult male Capercaille (Tetrao urogallus), displaying in the snow, Scotland, December 2010

Danny Green / Bison (Bison bison) head portrait in heavy frost. Yellowstone National Park, United States America, February.

Sandra Bartocha / Hoar frost on snow, Kratzeburg, Mecklenburg-Vorpommern, Germany, January 2009.

David Noton / Frost covered grass fields and country road leading to village of Oborne, Dorset, England, UK. February 2012.

David Noton / Frost covered grass fields near village of Oborne, Dorset, England, UK. February 2012.

David Noton / Frost covered grass fields near village of Oborne, Dorset, England, UK. February 2012.

Fabrice Cahez / Roe deer (Capreolus capreolus) in distance at dawn, Vosges, France, February

Guy Edwardes / 2020VISION / Beech (Fagus sylvatica) woodland trees covered with hoar frost. West Woods, Compton Abbas, Dorset, England, UK, December.

Juan Carlos Munoz / Waterfall with frost covered trees on cliff top, Plitvice Lakes National Park, Lika, Croatia, Europe, January 2012

Mike Wilkes / Snipe (Gallinago gallinago) standing in snowy field, Warwickshire, UK, February

Mike Wilkes / Snipe (Gallinago gallinago) feeding on worm, Warwickshire, UK, February

Mike Wilkes / Snipe (Gallinago gallinago) in snowy field, Warwickshire, UK, February