Andy Trowbridge / Capercaillie (Tetrao urogallus) male displaying in Scots pine tree (Pinus sylvestris) Southern Norway. May.
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Alex Hyde / Peacock butterfly (Inachis io) feeding on Goat Willow catkins (Salix caprea), an important food source for pollinators in early spring. Peak District National Park, UK. April.
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Erlend Haarberg / Siberian jay (Perisoreus infaustus) in Scots pine forest, near fallen tree, Stora Sjofallet National Park, Laponia World Heritage Site, Lapland, Sweden, October.
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Nick Upton / Eurasian beaver (Castor fiber) gnawing the trunk of a Willow tree (Salix sp.) in woodland enclosure at night. Devon Beaver Project, run by Devon Wildlife Trust, Devon, UK, April. Taken by a remote cam...
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Sandra Bartocha / Silver birch (Betula pendula) and Scots pine (Pinus sylvestris) trunks in snow, Muritz-National Park, Germany, January.
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Matthew Maran / Oak tree (Quercus robur) in snow, Hampstead Heath, London, UK, January 2013.
