I have a completely enclosed 6' x 40' run & coop to enclose my geese (4 goslings due in April) until they get full grown & to lock them up at night after that, but would 4' fencing work to contain them while they range during the day after they are grown? or would they fly over it? I'd like to fence in about 1/2 an acre. The reason being we live near a highway & I don't want them wandering out on the road. If I could use fencing shorter than 6' I could afford to fence in even more area for them. What about livestock fencing-would that work? Opinions and advice are greatly appreciated.