Easy read and very nice coop. I like the idea of making movable chicken tunnels that connect to a central location. Remind me of fingermonkeys. Wish we could see pics of the building process and the nesting boxes, roosts, etc.
This build is nice. I like the different colors in the wood. But for the best protection I would install Hard Wire Cloth. It's the only sure wire that will keep most of the predators out. And also an enclosed coop for at night with lots of ventilation.