David Woodfall / Mute Swan (Cygnus olor) pair in flooded agricultural land adjacent to River Severn, 10th February 2014.

Markus Varesvuo / Male King eider (Somateria spectabilis) in flight over water, Batsfjord, Norway, March.

Luke Massey / Sungrebe (Heliornis fulica) on water, Pantanal, Brazil.

Hermann Brehm / Sungrebe (Heliornis fulica) swimming, Pantanal, Brazil.

Peter Cairns / 2020VISION / Greylag goose (Anser anser) vocalising in a field, with other individuals in the background, Caithness, Scotland, UK, June.

Enrique Lopez-Tapia / Egyptian geese (Alopochen aegyptiaca) Big Hippo Lagoon, Orango Island, Guinea-Bissau.

Luiz Claudio Marigo / Band of Black-bellied Whistling-ducks (Dendrocygna autumnalis) on the shore of Piquiri River, Pantanal, Mato Grosso State, Western Brazil.

Roy Mangersnes / Female Longtailed duck (Clangula hyemalis) resting among flowering Purple saxifraga (Saxifraga oppositifolia) outside Longyearbyen, Spitsbergen, Svalbard, Norway, July.

Peter Cairns / Mallard (Anas platyrhynchos) duck upending dabbling in loch, Cairngorms National Park, Scotland, July.

Peter Cairns / Snow Geese (Chen caerulescens) taking off en-masse in evening light, Bosque del Apache, New Mexico, USA, December.

Peter Cairns / Mallard (Anas platyrhynchos) drake silhouetted on ice, Scotland, UK, February.

Peter Cairns / Snow Goose (Chen caerulescens) in flight in evening light, Bosque del Apache, New Mexico, USA, December.