DAVID TIPLING / Female Eider duck {Somateria mollissima} standing at sea edge, Northumberland, UK.

DAVID TIPLING / Male Eider duck {Somateria mollissima} swimming in wake of wave, Northumberland, UK.

DAVID TIPLING / Male Eider duck {Somateria mollissima} swimming in rough sea, Northumberland, UK.

DAVID TIPLING / Male Eider duck {Somateria mollissima} at sea, Northumberland, UK.

DAVID TIPLING / Smew {Mergus albellus} drake flying over rough sea, UK.

Paul Hobson / Eider duck {Somateria mollissima} pair courting, Northumberland coast, UK.

Paul Hobson / Eider duck {Somateria mollissima} male displaying, Northumberland coast, UK.

Staffan Widstrand / Steller's eider duck male stretching wing {Plysticta stelleri} Vardo, Norway.

David Kjaer / Eider duck male in surf {Somateria mollissima} Northumberland UK

Flip de Nooyer / Group of Shelduck feeding in shallows {Tadorna tadorna} Netherlands

Tony Heald / White cheeked pintail ducks {Anas bahamensis} Galapagos.Islands

Nick Upton / Flock of Barnacle geese (Branta leucopsis) and Eider ducks (Somateria mollissima) passing yacht during migration west over the Baltic Sea, Cap Arkona, Rugen Island, Mecklenburg-Vorpommern, Germany, Oc...