Red squirrel appears around the trunk of a snowy tree

Scottish Blackface Sheep portrait, Isle of Mull

Red squirrel creeping up a log for nuts

Red squirrel eating a nut in the Highlands

Fallow deer doe and her calf in a clearing

Impressive buck perking up from his sleep

Magnificent horns on a Scottish Blackface sheep

Eurasian otter returning up small stream to his hoult

Eurasian otter on the descent from his sprainting rock

Fallow deer buck reaching for leaves

Highland cow at Rothiemurcus Estate

Otter emerging from Loch with fish meal, Isle of Mull, Scotland

Otter checking its surroundings after meal, Isle of Mull, Scotland

Sibling otters playing on the rocks, Isle of Mull, Scotland

Mother otter and cubs in bundle on the rocks, Isle of Mull, Scotland

Otter scanning the surface of the water. British Wildlife Centre, Sussex

Scottish Wildcat expressing characteristic dissatisfaction at onlookers. British Wildlife Centre, Sussex.

'Big Dave', the dominant stag of the deer herd at Dunstall Hall, Staffordshire, bellowing amongst his does.

Mountain hare in Autumn coat, breaking cover. Cairngorms, Scotland.

Prowling badger emerging from around a log. Cairngorms, Scotland.

Reindeer with resplendent antlers just starting to shed their velvet. Cairngorms, Scotland.

Stag on a frosty morning, Cannock Chase, Staffordshire

Dewy morning hare with the torn ear of a previous battle. Eyemouth, Scotland.

Hare frozen to the spot in an attempt to avoid the attention of passing eagles. Cairngorms, Scotland.

A group of Fallow Deer does, taken by surprise on an early frosty morning on Cannock Chase, Staffordshire.

Brown Hare sitting warily in an arable crop on a dewy morning. Shenstone, Staffs.

Overcome by curiosity, she had to come over and have a sniff! Wychnor, Staffordshire.

Brown hare lying low in the freshly fallen snow of Wychnor, Staffordshire.

Inquisitive fox pointing intently at potential prey. Fradley, Staffordshire.

A colony of seals sleep on the beach of Blakeney Point, Norfolk.

Prancing pronking deer, heading for the safety of the woods. Eyemouth, Scotland.

A salmon embarks on the arduous task of heading upstream to spawn. River Tweed, Berwickshire.