Mallard Duckling

Mallard Duckling (Enlarge)

Photographed in the campus of the University of Reading, Berkshire, UK, in June 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.