Also... her siblings and she usually have free range of our yard about 1/2 acre in grass with three chickens. At what point is it safe to let her join her flock with the baby? I am thinking until the baby is big enough to stay in their pen safely it is not smart to let her around the others for sure but they all can come to the pen she is in now to see and get use to it. I noticed before having to move the pen that the other ducks and the chickens were going over to take a peek at the baby. I am thinking at least 3 weeks old. Your thoughts?? and that is based on their behavior if someone is nasty. Chickens are wayyyyyy more nasty at times I have not seen that in my ducks other than the male who is just protecting them. Baby Pansy pic to follow after mom Dandi-Lion calms down.