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Mallard

Mallards in the Snow (Enlarge)

Photographed in Knaphill, Woking, Surrey, UK, in January 2010.

The mallard (Anas platyrhynchos), or wild duck, is the most common duck species in sub-tropical America, Europe, Asia, New Zealand and Australia. It is the ancestor of all domestic ducks, and so can interbreed with them all.