My black astrolorp was out side in a trance rolling over and over in the dirt,making a hole lol. She was talking away and my daughter was so concerned she had me come running. The chicken was cooing, bock bocking and just weird acting while rolling around ,then when I went near her she stopped, and allowed me to pet her while she bent her back and was so relaxed. Then she got up and was fine. I checked her vent and she looks fine, and she has no problems back there I can see. What do you think she was doing? She dusts under my hedge, but was going bonkers in this hole she dug. is this egg laying behavior?