Two days ago my wife spotted another duck that we hadn't seen before splashing in a large puddle on the drive. A little while later she was on the roof of the summer house so I went out to take photographs and was surprised how close I could get to her. Later I noticed her by the side of the pond and that is where she has been ever since. I think she is a Muscovy Duck and it so nice of her as a new resident on the pond. She is quite friendly and has a calming effect on the mallards. She is happy to sit with them preening herself.