So i don't have chickens yet but when i do, i need to make sure that they will stay in our yard and not go under our sheds. I need some sort of barrier that the chickens won't pass but domesticated cats can go past. (our neighbors cat is very friendly and loves to visit and have some protection under our sheds.) I need them not to go under our fence and go visit our neighbors, but the cat also needs to get under said fence. Any ideas are highly appreciated!!! thanks!