Oh they will be a presence and you'll know they are around when the ducks and turkeys begin to mate the geese don't like it and they will raise a ruckus. It's quite hilarious. It's okay if the mate but boy no one else better. lol
Another thing I just noticed you mentioned guard geese. Well I hate to tell you but geese cannot guard anything. They can sound an alarm when a flying predator is around but they cannot stand up to anything with teeth. We had a member some years back that a mink killed her goose. My 2 geese were...