I've always free-ranged my flock but have a smallish chicken yard. I've lost most of my flock to predators lately, namely a bobcat, so I'm going to have to change my habits. I plan to build a larger chicken yard for their primary day-time turn-out (yard is attached to coop) and I don't know whether or not to put a top on it. Most of the chicken yard will be in woods with just a small slice of our yard. The coop is near the house. How high should the fence be? My current one is 4'. I've never successfully kept adult chickens in the yard; they just fly over the fence, although since free-ranging I've never trained hens to stay in the yard. I use it mostly for new pullets then once they see that the other girls go into the big world, they follow. I only have one hen left so will be getting a batch of chicks. We will be fencing our sizeable garden as well so I'll have a gate connecting the two for grazing during non-produce times. I've looked at electrified poultry netting but don't think that would be good in a wooded setting - all those falling leaves. So looks like welded wire. Would running an electrical wire around it be sufficient for predators? I will apron the bottom.