Common Goldeneye (Bucephala clangula) female swimming with four chicks, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common goldeneye (Bucephala clangula) female swimming with four chicks, Lac Le Jeune Provincial Park, British Columbia, Canada, North America

Common goldeneye (Bucephala clangula) at Martin Mere, a Wildfowl and Wetlands Trust bird reserve near Southport, Lancashire, England, United Kingdom, Europe

Adult female Barrow's Goldeneye (Bucephala islandica) in full breeding plumage in the calm waters of Red Bluff Bay, Southeastern Alaska, USA

Goldeneye (Bucephala clangula) female swimming in loch, early morning still water, back lit. Nr Kilchrenan, Argyll, Scotland, UK

Golden Eye Drake Duck (Bucephala clangula) against dark trees flapping wings. Highlighted by late evening sunshine. Argyll, Scotland

A pair of adult Barrow's Goldeneye (Bucephala islandica) in full breeding plumage in the calm waters of Red Bluff Bay, Southeastern Alaska, USA

Adult male Barrow's Goldeneye (Bucephala islandica) in full breeding plumage in the calm waters of Red Bluff Bay, Southeastern Alaska, USA

Adult Barrow's Goldeneye (Bucephala islandica) in full breeding plumage in the calm waters of Red Bluff Bay, Southeastern Alaska, USA

Golden Eye Drake Duck (Bucephala clangula) against dark trees head on. Highlighted by late evening sunshine. Argyll, Scotland

Golden Eye Drake Duck (Bucephala clangula) against dark trees. Highlighted by late evening sunshine

Adult Barrow's Goldeneye (Bucephala islandica) in full breeding plumage in the calm waters of Lake Myvatn, Iceland

Adult Barrow's Goldeneye (Bucephala islandica) in full breeding plumage in the calm waters of Lake Myvatn, Iceland

A pair of adult Barrow's Goldeneye (Bucephala islandica) in full breeding plumage in the calm waters of Red Bluff Bay, Southeastern Alaska, USA

Golden Eye Drake Duck (Bucephala clangula) against dark trees, face on head tilted to side. Highlighted by late evening sunshine. Argyll, Scotland

Adult male Barrow's Goldeneye (Bucephala islandica) in full breeding plumage in the calm waters of Red Bluff Bay, Southeastern Alaska, USA

Golden Eye Drake (Bucephala clangula) swimming past Autumn trees in late evening sunlight. Goldeneyes on Loch Awe are migrants, arriving in October and leaving in late April. Argyll, Scotland

Goldeneye Duck (Bucephala clangula), drakes swimming with hills in background. Argyll, Scotland, UK