I don't think it will hurt it. It will probably just dry up. We had a few that were attached with "strings" Umbilical cords? to the shell, and we just cut them off so they could move more freely and exercise their legs. I would think that as long as the airways, eyes, ears, and legs/feet are...
We had Buff Orpingtons (about 30 in a Chicken house) when I was a girl. It was my job to take care of them. We got them through the mail as chicks, though. Just hatched my first incubator full of Ameracuanas with my daughter. What an incredible experience!