I have geese, ducks and chickens all 16 weeks old. Everyone is eating grower right now including the few older layers I have. I usually switch the chickens to layer at about 17 weeks. The ducks are coming of age as well. The ducks and geese were raised together and are still very attached to each other. I feed everyone together. Is it safe to switch everyone to layer next week? The geese raid the chicken coops in the morning eating whatever food is left. They are free ranging and on a pond. I know the layer isn't necessary for them now, but if it's safe, having everyone on the same feed us much much easier.