And someday, when we have coops full of rescue chickens, we'll have rescue goats running and playing on their goat fort. /LOL you need a couple thick poles with a 2x6 going across from one to the other. Goats really enjoy that. Telephone poles work real well too.
This would be a good idea for the paddocks so you can better keep their hay from getting eaten off the mud and also don't have to spend a ton of time on hay nets! Although, these should be a bit bigger.
Train your chickens to come when called, so you can let them out and get them in anytime you want. Also enables you to call them to safety when predators lurk. If you have multiple flocks, you can train each to come to a different call. Very helpful when you have new pullets free ranging with old flock, and need to get each flock to its own coop.