The ducks I've had in the past were much more noisy. All of my Roman's have been quiet. I used to have Chinese Geese - they were much, much louder and made noise more often. I'm not sure what to tell you. I live on an acreage and my neigbors are not terribly close and we are surrounded by woods and a creek so there is more of a natural barrier on three sides of us. I really like my geese and want you to have the same positive experience because I think you would like them I just don't know how your neighbors might react. Do you live in a town or out in the country?
Just re-read your post...yes, it only takes a couple of minutes for them to calm down. They leave the barn, honk and head right for the pool which I clean every night and they just jump in and start drinking and preening...and sometimes mating in the last several weeks. They free range all day and tend to stay close to the barn and in that general area. The Chinese seemed to wander further away while grazing each day...another difference - in addition to being more noisy and agressive. These guys are almost always in the same place each evening when I come home from work...sitting in the sun as it sets. They understand that when I come home it is time to go into the barn. Once I change my clothes and head out to do my evening chores, the minute the see me, they form a line and head for the barn. They are really neat creatures. BTW - they do not make any noise while I'm putting them away in the evening. This is my fourth Spring with Romans and I really enjoy them. Last year I added a pair of Sebastopols and they do make more noise than the Romans. In fact it is the Sebbie gander that makes the most noise each morning...but he tends to be the most dominate gander and he has to let everyone know. But it only takes a couple of minutes and they are quiet. Last week, I was selling goats and even though we had several different families visiting to purchase goats...the geese were all pretty quiet none of them showed any agression towards the strangers at all. They just stood off in the distance watching us and preening their feathers.