Friends of mine back on to a canal,they would have swans, geese and ducks on their tea lawn. Ducks first, then the geese would scare the ducks off then the swans would move the geese on. First few years they thought is was cute having all these on their lawn with their young. But the swans got a little bolshy, they had to fit a farmhouse style split back door as the male would wonder in to the house. Then it would peck at the door for food. In the end British Waterways fenced off their garden from the canal so they couldn’t get up to their lawn.