hi I have 2 Pekin ducks, male and female, they start off as yellow ducklings but within 30 days they are fully grown white ducks, yellow beaks and feet, the male has a curled tail feather and has a quiet raspy quack, the female has a much louder more defined quack.. they are very amusing and love to be part of the family, mine arn't put off by my 2 dogs, although we closely monitor them, we have a paddling pool for them to bath in.. we were told these are the best ducks to get if you have children as they are more friendly.Jemima has just started laying, we get a lovely double yolked egg every morning. George our male likes to chase anyone that has bare feet but jemima will just sit quietly and watch.. so if you want ducks i'd recommend these, also ducks should be kept in pairs so they have company from their own kind or you will get either a unhappy and lonely duck or one that follows you everywhere, can be annoying when you want a relaxing bath