My white leghorn, Camilla, Hasn't layed an egg is slightly over a week. There really haven't been any changes in her enviroment, other than the weather, which went from being 75-85 in the day to being 60-75. She has always been my most productive layer, usually laying an egg every day. Her behavior is the same. She has lost several feathers lately, but she is acting completely fine! Could it just be the weather upsetting her, or is there something wrong with her?