I have a young Dominique that has been laying daily. I found her perched in the house yesterday afternoon and didn't worry. However I just went out today and she was missing from the flock. I found her in the same spot. She's lethargic, one eye isn't opening and she won't eat or drink now. We had a hen die just a couple of weeks ago for no apparent reason also. I can't figure out what is going on. Any ideas?