Geese are good free ranging with most other birds. there are always exceptions to this as each have their own personality. Breeding season is when you have to be the most careful. ganders and geese both will claim a territory and defend it and run others off. We use breeding yards and paddocks to keep the various breeding pairs and trios separate from each other and the other animals. It makes put up and turn super easy too.
We run a flock of ducks in each main pasture, these spaces can often be shared by geese and chickens too. Keeping a careful eye on drakes (male ducks) to make sure they arent trying to molest chickens. So far so good around here.
Routine is a key thing for geese, be patient as they learn what you want from them. After a week they usually have it down and will be a joy to work with. Same goes for feed, they dont take to new food like piggie ducks, so dont give up until you try for a week with something new.
Sorry for the delay in responding, we had horrible rains last night and had to get some clean up done.
More eggs arrived today so setting them tonight