Close-up of squirrel sitting on wooden post, Rocky Mountain National Park, Colorado, USA

Bird on wooden post

Close-up of Ural owl (Strix uralensis) on wooden post, Bavarian Forest National Park, Bavaria, Germany

Close-up of Lesser Spotted eagle (Aquila pomarina) on wooden post, Bavarian Forest National Park, Bavaria, Germany

Close-up of Blue Tit (Parus caeruleus) bird perching on wood, Germany

Close-up of Tree sparrow (Passer Montanus) on tree stump

Close-up of Blue Tit (Cyanistes Caeruleus) bird on wood

Red-throated Pipit (Anthus cervinus) sitting on wooden stake, side view

Anthus pratensis, full shot

Two Black-headed gulls (Larus ridibundus) on dolphins at harbour, Hamburg, Germany

Groin at beach, Sylt, Schleswig-Holstein, Germany

Anthus pratensis, full shot

Bull's head symbol painted on wooden post

Long tailed cock perching on branch, side view

World War Two poster of workers harvesting crops in a field.

Close-up of Anhinga perching on wooden post