I have never had geese but have heard the ones at the park and they are LOUD.. My Welsh Harlequin doesn't sound that loud to me.. She has a lower quack. kind of like a laugh.. Now when she gets upset its a little louder.. but she doesn't quack that often.. My rescue Judy a pekin is a loud mouth!!!! but she has settled in and isn't as loud as she was.. she would quack her head off when she got seperated from stanley and daisy.. She's learned to follow them around now etc and doesn't get seperated very often..