I have a blue EE hen, and I had her in the feed shed feeding her. I went into the coop and when I came back she was over in the corner in a nest she had made. A few minutes after that she got off the nest, so I figured she didn't like that nest. So I go over and look in her nest that she had just been in, and there was an egg.All my other hens cackle after they lay an egg. What is her problem??