Hi all, I am trying to figure out what made my flock sick. We did several things at the same time so it is hard to narrow it down. We let them free range, put oak leaves in the run so they could kick them around. Well someone said they thought they had heard that oak leaves had a oils that might be harmful to animals. Anyone else have any experience, or heard of that? When I looked at a list of dangerous plants I saw our property had several, columbine,rhubarb, azaleas and much more So I don't think we can let them out of their run.