The Common Shelduck is a waterfowl species shelduck genus ''Tadorna''. It is widespread and common in Eurasia, mainly breeding in temperate and wintering in subtropical regions; in winter, it can also be found in the Maghreb. Its scientific name comes from Celtic roots and means "pied waterfowl", essentially the same as the English "shelduck".
Fossil bones from Dorkovo described as ''Balcanas pliocaenica'' may actually belong to this species. More likely, they are an extinct species of.. more