Markus Varesvuo / Hawk owl (Surnia ulula) takingn off from powder snow, possibly with prey in talons, Kuusamo Finland February

Colin Monteath / Powder snow avalanche falling from Gasherbrum, Baltoro Glacier, Karakoram Mountains, Pakistan

Markus Varesvuo / Hawk owl (Surnia ulula) takingn off from powder snow with mouse prey in talons, Kuusamo Finland February

Markus Varesvuo / Bearded tit (Panurus biarmicus) male feeding, spraying snow, Espoo Finland January

SCOTLAND: The Big Picture / Red squirrel (Sciurus vulgaris) leaping amongst wintry trees, Cairngorms National Park, Scotland, UK, January.

Colin Monteath / Caribou (Rangifer tarandus) herd scraping away powder snow to find moss to eat, Hunkher Mountains, Mongolia

Tim Laman / Skier Phil Atkinson skiing through deep powder with a full pack above Denny Lake, Beartooth Mountains, Montana, USA. May 2008

Tim Laman / Skier Phil Atkinson skiing through deep powder snow above Denny Lake, Beartooth Mountains, Montana, USA May 2008

Tim Laman / Skier Phil Atkinson skies through deep powder near Twin Outlets Lake after snow storm, Beartooth Mountains, Montana, USA. May 2008

Tim Laman / Skier Phil Atkinson skies through deep powder near Twin Outlets Lake after snow storm. Beartooth Mountains, Montana, USA. May 2008

Tim Laman / Skier Phil Atkinson skies through deep powder near Twin Outlets Lake after snow storm. Beartooth Mountains, Montana, USA. May 2008

Tim Laman / Backcountry skiing in the Santa Fe, New Mexico vicinity, USA. Telemark skiing in fresh powder snow. Feb 2003.