This morning I go out to the coop, and there is this one pullet who I call "Effie" who is playing with straw. Yes, playing, like a parrot or something. She was picking up straw and placing it on her back. It was as if she wanted to see how many straws she could get up there before they fell off. CRAZY! I watched for a while to see if it was a fluke, but she did it over and over. Anyone else seen this?