Mallard (Anas Platyrhynchos) Male Duck - Mallard Ducks (known As Anas Platyrhynchos In The Scientific World) Are The Most Common European Ducks. The Male Has Distinctive Green Colors On His Head, As The Specimen In The Picture, Resting On An Anchoring Pillar On Lake Como (Italy), In The Port Of The City With The Same Name - Como. Photo