:hugs It happens to all of us. We don't know what we don't know. There was no way to know that some rat (aptly named) brought poison to your chickens. Still, it's very sad.
But, babies! :jumpy :ya
I just now read this whole thread. I'm so sorry, Mrs. K. :hugs What a tragic episode for you! Is your rooster still alive? Do I understand only the one hen survived?