Barbed wire will increase the danger to you and your birds, and not increase the effectiveness of the electrified wire to deter predators here. Smooth wire or electric tape or rope is best. Mary
Welcome! Also, covering the run with at least mesh to keep out raptors, and then you will hate the run height. Make it tall enough to comfortably walk in; at least a bit over two meters high. I agree with everything else mentioned already. For the coop, a garden shed type structure with lots...