This bird breeds seldom in Scotland and Ireland, but large quantities
come from abroad in the hard weather; they are the principal attraction
of the punt gunner, and afford the chief profit of the decoy man. The
way to find widgeon is to discover their chief food, the _Zostera
marina_ of the mud flats, and then wait for hard weather and the night,
when they feed. _Mareca penelopes_ is its scientific name.