My leghorn hen has dropped wings. She acts fine, is active, eats well. She is however on the smallest of the 4 hens I have and she is bottom of the pecking order. In fact the other hens won't let her roost and she sleeps on the floor of the coop at night. They were all free ranging until we had no backyard lawn any more so we built a run for them along the coop. Could she just be depressed for not being able to free range or is there something else going on.