Ismaele Tortella / Eurasian otter (Lutra lutra) hunting in a shoal of Atlantic herring (Clupea harengus), northern Norway, March

Ismaele Tortella / Four Eurasian elk (Alces alces) walking through vegetation , Norway, August

Hermann Brehm / Cuckoo (Cuculus canorus) in flight, Germany, April. May

Neil Anderson / Red squirrel (Sciurus vulgaris), two curled up asleep in drey inside nest box. Nest of lichen and Pine needles. Highlands, Scotland, UK. Medium repro only.

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.

Loic Poidevin / Eurasian blue tit (Cyanistes caeruleus) on a branch, Vendee, France, January.

David Woodfall / European beaver (Castor fiber) rear view in wetlands, in captive breeding programme .Bevis Trust, Carmarthenshire, Wales, UK, May.

David Woodfall / European Beaver (Castor fiber) amongst Pondweed (Potomogeton natans) in freshwater lake Bevis Trust, Carmarthenshire, Wales, UK, June.

Andy Rouse / Cuckoo (Cuculus canorus) perched on conifer in habitat. Wales, UK. May

Andy Rouse / Cuckoo (Cuculus canorus) in habitat, Wales, UK, May.

Andy Rouse / Kingfisher, (Alcedo atthis), diving for fish from branch, UK, Medium repro only