I have /had 6 laying hens I bought as day old chicks around 6 years ago... I have lost 4 of them in the last 6 months... they seem fine, then one day I look at one of them and she looks " hunched up" then dies a few days later. Is this a normal old age way to die or is something making it rounds in my chicken coop... I have two remaining original hens in there, a golden sex link and an americana... I have lost two barred rocks and two red sex links... thanks for any input