John Waters / Mixed flock of Wigeon (Anas penelope) and Northern lapwings (Vanellus vanellus) disturbed by hunting Marsh Harrier (Circus aeruginosus), Greylake RSPB Reserve, Somerset Levels, England, UK, December.

Nick Upton / Panning shot of partially flooded pastureland with large flocks of Wigeon (Anas penelope), Lapwings (Vanellus vanellus) and Golden plover (Pluvialis apricaria) in flight, Gloucestershire, England, UK,...

Nick Upton / Panning shot of a flock of Lapwings (Vanellus vanellus) landing on partially flooded pastureland near resting Black-tailed godwits (Limosa limosa) and grazing Wigeon (Anas penelope), Gloucestershire,...

Mike Read / Red crested pochard duck male {Netta ruffina} Arundel, Sussex, UK

Oscar Dewhurst / Crested duck (Lophonetta specularioides) walking on a frozen Andean lake. Arequipa, Peru. September. Cropped

David Tipling / Red-crested pochard (Netta rufina) male London, England, UK. October

Debapratim Saha/ BIA / Red-crested Pochard (Netta rufina) male flying, West Bengal, India

Mike Read / Crested duck (Lophonetta specularioides specularioides) adult and three ducklings in a freshwater pool, Bleaker Island, Falkland Islands, December.

Glenn Bartley/ BIA / Crested Duck (Lophonetta specularioides) calling, Falkland Islands

Bernard Castelein / Crested Duck (Anas specularioides) Laguna Canapa, Altiplano, Bolivia

Bernard Castelein / Crested duck (Anas specularioides) at Laguna Hedionda, Altiplano, Bolivia

Bernard Castelein / Crested duck (Anas specularioides) two resting on shore of Laguna Canapa, Altiplano, Bolivia