I have about 4 hens that are escape artist. My chicken run does not have a top. Just a fence around the coop in a 20x20 area give or take a few feet. They have plenty of room. The have a small roost in the center if they wish to roost. On the days that I have off from work the girls are able to free range for most of the day. But when I am not home they are not but when I do get home I always have the same 4 escapees running around in the yard. Can clipping their wings curtail this behavior. I realize that they would like to free range all day but have to make sure none of the cats or stray dogs get them while I am not home.