I have 6 hens, 2 of witch have been laying for 2 weeks now and now a third laid her first egg yesterday. Some of them have also started making some loud noises. Is this the egg song? Its is very loud clucking. We heard it all the way in the house. I though something was wrong as first. Maple did it yesterday when she was standing outside the nest box before she laid her egg. Other than this they are pretty quiet girls.