I now have three rows of young fruit trees with various berry plants and wood mulch. The girls tend to get into them, scratching away the mulch and eating too many of the berries (not concerned about sharing some around the edges). I'm going to be putting up simple metal post and chicken wire fencing around the rows. The rows are roughly 4' x 50' each. Would 2' fencing be sufficient? 3' will make it somewhat harder to reach down near the ground, but also make it less tempting for the girls to try and get into. The price isn't sufficiently different to be a serious concern. I do have a couple of raised bed gardens that are about 4' tall between the wood and metal fencing. My girls have never tried to invade them. Any thought/experience with this? Will the girls likely respect the 2' fence or should I just deal with the hassle and go a little higher? FYI- I have three hens- Australorp, Barred Rock and a RiR (the best flyer).