Well at least that is one way to practice birth control. One of my 13-year-old Muscovy laid her 12th egg for this season today. Not fertile since I lost my old Muscovy drake in March . But she surprises me every year last year she laid a total of 12 and hatched 2 Runner ducklings, both drakes So I am practicing birth control My only drakes now are Runners and they are way too hormonal for my old girls.