Question: how do you tell the difference between a male and female indian runner duck?
Answer: Beaks, Legs and Feet Of course, white breeds show no difference at first: the bill is often orange-yellow in both sexes, but the beaks of adult females often develop darker markings with age. A word of caution: some females can have dark greenish bills e.g. Abacot Ranger, but their counterpart males are brighter green.