New to the forum and looking for advice. I have had one hen for over a year and she is happy and laying well, however over the last 6 months I have introduced 6 hens and 1 rooster and to date 3 of the hens and the rooster have all died. They go very lethargic and do not digest their food properly (see corn and grass in their poop) and then 2 days later die, but never at the same time. They are kept in a large run and allowed to free range during the day, they are fed on layers pellets and given corn as a treat. I have wondered if it is because they were not vaccinated as chicks as they came from a friend who has raised them as a hobby but all her hens are fine?? I clean the house regularly, they have fresh water, they are wormed and I am at my wits end and feel as if I should labelled as the chicken slayer!