A family member just bought a small tract of land that I will be able to hunt. They want to fence it (not a high fence) to keep their dog from straying onto neighboring property, but I am worried on the effects it will have on deer travelling through. The former owners kept some cattle, so the entire perimeter is currently strung in 4 strands of barb wire, which the deer can go over or under. They want to do a 4' hog wire, which grown deer I'm sure could jump, but I'm worried that if the fawns can't make it through then mama won't come through so much either.

Any thoughts on what would work to keep a squirrel dog in but still allow deer to travel through?