We have a railing around the porch, but they scoot under the gates or fly over the railing. I shoo them off with a broom or squirt water at them when they roost on the railing, but all to no avail! I do like the idea, however, that they are nearby for my watchful eyes especially since I know that I have a fox in the area. We have about 150 chickens, turkeys, and guinea fowl, along with a lovely pair of Snowy Call Ducks, that free-range on our 1.5 acre yard and in our 5 acre corn field and garden. Bruce