ok, I know that chickens like their dust bath, and a few of them dig a hole and throw dirt over them when I let them out. I've only had them for a few days but all of a sudden I walked out and see the alpha hen in the open covered run, laying on her chest, rocking side to side, and digging out from under her. The spot that she is digging in has always been damp so I thought she might be trying to cool of, but it is only 70 out today. Is this normal?