Kittiwake gathering nesting materials

Kittiwake gathering nesting materials

Kittiwake gathering nesting materials from grass embankment at Crawton, Aberdeenshire.

Arctic tern chick being fed a large fish

Arctic tern chick being fed a large fish

Arctic tern (Stema paradisaea) chick being fed a large fish by a parent on the Isle of May, Scotland.

Northern gannet drying wings

Northern gannet drying wings

Gannet (Morus bassanus) drying wings at Troup Head, Scotland.

Black backed gull with chick

Black backed gull with chick

Black backed gull with chick, Isle of May, Scotland

Northern gannet (Morus bassanus) with young

Northern gannet (Morus bassanus) with young

Northern gannet (Morus bassanus) with young at Troup Head, Scotland.

Black grouse (Tetrao tetrix) males fighting at a lek in Scotland, monochrome image.

Black grouse (Tetrao tetrix) males fighting at a lek in Scotland, monochrome image.

Black grouse male attacking another on the ground fighting at a lek in Scotland, monochrome image.

Mute swan taking off at Loirston Loch nature reserve, Aberdeen

Mute swan taking off at Loirston Loch nature reserve, Aberdeen

Mute swan taking off at Loirston Loch nature reserve, Aberdeen, Scotland

European shag (Phalacrocorax aristotelis) feeding

European shag (Phalacrocorax aristotelis) feeding

Monochrome image of a European shag (Phalacrocorax aristotelis) feeding on the Isle of May, Scotland.

Northern gannet (Morus bassanus) collecting nesting material

Northern gannet (Morus bassanus) collecting nesting material

Monochrome image of gannet (Morus bassanus) in flight after collecting nesting material at Troup Head, Scotland

European shag (Phalacrocorax aristotelis) Isle of May, Scotland

European shag (Phalacrocorax aristotelis) Isle of May, Scotland

Monochrome image of an European shag (Phalacrocorax aristotelis) photographed on the Isle of May, Scotland.

Arctic tern (Sterna paradisaea), Isle of May, Scotland

Arctic tern (Sterna paradisaea), Isle of May, Scotland

Arctic tern (Sterna paradisaea) at Isle of Mull, Scotland

Black grouse (Tetrao tetrix) males fighting at a lek in Scotland, monochrome image.

Black grouse (Tetrao tetrix) males fighting at a lek in Scotland, monochrome image.

Male black grouse fighting at a lek in Scotland, monochrome image in square format.

Black grouse (Tetrao tetrix) female at a lek in Scotland, monochrome image.

Black grouse (Tetrao tetrix) female at a lek in Scotland, monochrome image.

Black grouse (Tetrao tetrix) female at a lek in Scotland, monochrome image.

Northern gannet (Morus bassanus) flying

Northern gannet (Morus bassanus) flying

Northern gannet (Morus bassanus) flying at Troup Head, Scotland.

Arctic tern (Stema paradisaea) chick strengthening wings

Arctic tern (Stema paradisaea) chick strengthening wings

Arctic tern (Stema paradisaea) chick strengthening wings photographed on the Isle of May, Scotland.

Northern gannet (Morus bassanus) flying

Northern gannet (Morus bassanus) flying

Northern gannet (Morus bassanus) flying at Troup Head, Scotland.

Arctic tern (Stema paradisaea) courtship, Isle of May Scotland.

Arctic tern (Stema paradisaea) courtship, Isle of May Scotland.

Arctic tern (Stema paradisaea) pair courtship on the Isle of May, Scotland.

Northern gannet (Morus bassanus) landing

Northern gannet (Morus bassanus) landing

Northern gannet (Morus bassanus) landing at Troup Head, Scotland.

Black backed gull with chick

Black backed gull with chick

Black backed gull with chick, Isle of May, Scotland

Curlew feeding on the Ythan estuary, Aberdeenshire

Curlew feeding on the Ythan estuary, Aberdeenshire

Curlew (Numenius arquata) feeding on the Ythan estuary in Aberdeenshire.

Common eider duck (Somateria mollissima) taking off from water

Common eider duck (Somateria mollissima) taking off from water

Male common eider duck (Somateria mollissima) taking off from water at the Ythan estuary, north east Scotland.