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The mandarin duck (Aix galericulata) is a perching duck species endemic to East Asia but since introduced to Europe and the United States. It is medium-sized, at 41–49 cm (16–19 in) long with a 65–75 cm (26–30 in) wingspan. The species mainly eats plants and seeds, especially beech mast. It will also add snails, insects and small fish to its diet.
This specimen was photographed in Richmond Park, London.Photograph: David Iliff
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