 lower stocking densities, more space, raised with natural light. It's supported by the RSPCA. It's not a free range system though. These chickens live their entire lives inside, in sheds. I don't believe that you get better and healthier status of the birds having an outside. The biggest issues for the bird is to have a space to run around. So when we have reduced the density in the farmhouses, I see that the birds are happy.