Marty our current girls JUMP straight up and over, what they cant jump over they climb over. They dont however go over our field fencing around the perimeter though. Breeder pens for the geese however they will break into for the feed, even if it means belly crawling under a fence. As long as I have field fencing or chain link up they stay put. I fenced off a palm I didnt want bothered and they plowed through the chicken wire even though it was double wrapped and chest hi.