Great Northern Diver (Gavia immer)

Great Northern Diver (Gavia immer)

One of two juveniles at Farmoor Reserve - March 2016.

Great Northern Diver (Gavia immer)

Great Northern Diver (Gavia immer)

Farmoor Reservoir - March 2016.

Red-throated Diver (Gavia stellata)

Red-throated Diver (Gavia stellata)

Shetland - June 2016

Red-throated Diver (Gavia stellata)

Red-throated Diver (Gavia stellata)

Shetland - June 2016