TheAlrightyGina
Crowing
Honestly I'd probably just wall off a section of the pen for their coop. You could anchor some plywood to the vertical supports on two of the walls and the corner, use 2x4's to create a frame for the inner corner, floor, and top, and just cut the door and ventilation windows wherever would work best for you and the chickens. Maybe something for access to the nest boxes. You could even put it on stilts so they have access to the entire floor with the pen being so tall.
