Planning to plant living fence or trees in your brooding/ranging area?
Having them as wind breakers may be a good idea, aside from the fact of course that they will be productive in terms of fruits, lumber, fragrance, medicinal etc.
How as wind breakers? Observe the direction of the wind and plan planting to break the strong winds.
Why install wind breakers? Instead of putting curtains in the pen, that inhibits proper air circulation, wind breakers will do the job. That will be good for your brooding/ranging area so your Sunshines will be protected. Also if the farm beside you sprays pesticides, you will be able to cover your farm :)