Loic Poidevin / Eurasian bullfinch (Pyrrhula pyrrhula) male on a branch feeding on Rowan (Sorbus aucuparia) berries, Leon, Spain, February.

Loic Poidevin / Eurasian bullfinch (Pyrrhula pyrrhula) male on a branch feeding on Rowan (Sorbus aucuparia) berries, Leon, Spain, February.

Bernard Castelein / Birch tree (Betula pendula) covered in hoar frost, Groot Schietveld, Wuustwezel, Belgium, December 2007.

Felis Images / Rhododendron (Rhododendron thomsonii) flowers in front of snow covered mountains, Sikkim, India.

Pascal Tordeux / Farmland with three Oak trees (Quercus robur) covered in frost. Saint Gobain, Picardy, France.

Cyril Ruoso / Common teasel (Dipsacus fullonum) covered in heavy frost, Burgundy, France, December.

Will Watson / Snow scene from Lower Brockhampton, with Sessile Oak (Quercus petrea) track and farm gate, Herefordshire, England, UK, December.

Bruno D'Amicis / Red deer (Cervus elaphus) stags climbing snowy slope among centuries-old beech trees. Central Apennines, Abruzzo, Italy, February.

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

Bruno D'Amicis / Shadows cast by beech trees (Fagus sylvatica) on snow. Abruzzo, Central Apennines, Italy.

Bruno D'Amicis / Red fox (Vulpes vulpes) walking behind beech trees in snowy landscape. Central Apennines, Abruzzo, Italy, February.

Bruno D'Amicis / Red fox (Vulpes vulpes) resting next to Wild rose (Rosa canina) bush. Central Apennines, Molise, Italy, February.