We have lived here a year and a half, the landlords are close friends though, and have a farm themselves. They have been very supportive and helpful of everything self-sustaining/farming related we try to do. Honestly they would probably let us put up a full fence if we wanted, but they mow hay on either side of us and blocking their path would be rather rude. They would probably take the geese themselves, or there are people up the road on either side of use who could. I have kept geese before, thats something I can do. I would like to again, but I was mostly joking, I want the goats for mowing yes, but more for milk. Perhaps electric fences for rotational grazing? I feel like they would just ignore the shock and jump/crawl through.