The mallard is one of the most easily-recognizable ducks, with its green head and the white ring around its neck, and is one of the most abundant ducks in the world. It is found throughout North America, Central America, Europe and Asia; always on open water such as lakes, ponds, marshes and bays. The mallard's courtship starts in early fall, forming pairs in early to mid-winter. The pair then migrates to the female's place of origin.