Yeah I have trouble looking at the battery houses. I see a lot of people adopting those mistreated chickens overseas. They look like a mess when they take them in, but after a few months all of their feathers grow back and they're happy birds again.
This is how Brookford Farm does it. Chicken tractors that they continually move around with electric fences. Yeah, the occasional bird gets picked off by hawks, but they have pretty good lives otherwise. Plenty of grass and movement. Here's a pic I took from there in 2015.