I was wondering how old ducks have to be to be mature enough to mate? My littles are 4 months old, and they still seem very young. I don't want to put them in with the grown drakes until they are ready. I know the drakes will mate them at any age, but I want the hens to be grown before they have to deal with that! LOL What age is considered teenage for ducks? My drakes are just over 1 year old, and they are definitely grown and ready to mate. How old should the hens be? Thanks.