I had 7 eggs that were rocking and rolling all over the place on day 15 and one was chirping and tapping. Then nothing. An egg that wasn't doing anything started chriping and tapping on day 19, pipped and zipped on day 20 and today is day 21 and none of the other eggs have done anything. The single chick has been frantically chirping loudly and non-stop since it hatched. It also has one eye that won't open. Should I be worried about the other eggs or is it normal to have one hatch so much earlier than the other chicks? I've always had one start and then the others just start pipping one after another. These ones aren't tapping, chirping or rocking. should I take this lonely chirper out?