Too bad, they LOVE being out.
Sorry for your loss.
I often wonder how many times we pass on our human emotions to animals that may or may not feel any way the same as we do. I would love to let my chickens free range on my property, I have 3 wooded acres. But I have confined my girls to a chicken run with fencing and bird netting on top to protect them from predators. So far, I have not suffered a predator attack.