What might not be clear from the plan is that our orchard is divided into 2 main areas, with a hen house in each (the orange and green rectangles on the plan).
Each of those areas is further divided into 3 paddocks, with the hen house sitting on the intersection of the fences. Each hen house has 3 pop holes, opening into a different paddock.
We rotate the poultry onto a new area each month, just by opening a different pop hole on the morning of the 1st of the month.
It gives the ground in 4 of the 6 paddocks 60 days rest before the hens are back on it, and prevents the whole area becoming a dust bath (or muddy field in winter).
Also the benefit of planting in blocks is that harvesting is so much easier. Rather than having ripening fruit scattered about the orchard, you can systematically crop the trees. It's not such an issue when they are young, but when you've got several tons of apples to harvest it will make life a lot easier. Ours are planted so that the closest to the main entrance are the earliest croppers.