I have had hens who are find for many months, heck even years, and then they will simply die without me knowing they were ill. I now have a Buff Brahma separating herself from the group, she was eating and drinking fine a week ago but now her hunger has been waning. Is this a sign of internal egg laying, and if so what do I do about it? Should I wait and see if she will get though it or possibly cull her? Thanks for any help you can give me! I know that it did rain this first or second week of October... maybe she has a cold?