text: The Mallard , or wild duck ( Anas platyrhynchos ) is a dabbling duck which breeds throughout the temperate and subtropical Americas , Europe , Asia , and North Africa , and has been introduced to New Zealand and Australia .
simplified: The Mallard ( Anas platyrhynchos ) is the best-known and most recognizable of all ducks . It can be found throughout most of North America , Europe , Asia , New Zealand and Australia .