Frozen, snow dusted pastureland, arable fields and row of trees in winter, Frozen Hill, near Bath, UK.

Wigeon (Anas penelope) flock in flight over frozen, flooded marshland on a foggy winter morning, with some drakes calling, Greylake RSPB reserve, Somerset Levels, UK.

Tykky on trees at dusk, Riisitunturi, Finland

Black-Headed Gull (larus ridibundus) group standing on ice in city park. Glasgow, Hyndland Park, Argyll, Scotland, UK

A frozen Loch Tromlee with snow capped Ben Cruachan in background and a sheep in foreground. Loch Tromlee and Ben Cruachan, Argyll, Scotland

Black-Headed Gull (larus ridibundus) pair standing on ice on a frozen pond in Glasgow city centre front on view. Glasgow, Hyndland Park, Argyll, Scotland, UK

Arctic flora and funa, Chirpoy Island, Russia, 14/06/2008

Black-Headed Gull (larus ridibundus) flying over a city pond in winter looking down. Glasgow, Hyndland Park, Argyll, Scotland, UK

A frozen Loch Tromlee with snow capped Ben Cruachan in background. Loch Tromlee and Ben Cruachan, Argyll, Scotland

A frozen Loch Tromlee with snow capped Ben Cruachan in background. Loch Tromlee and Ben Cruachan, Argyll, Scotland