To copy the photo to the clipboard, on the thumbnail above and select Copy image.
They are often reviled around the world for their ability to colonise urban open spaces. But here we normally get just a few. In mating season they are noisy, flying around and paddling around in pairs, like these two below.
This appeared like a couple of parents running a crèche, looking after a several families of goslings.
Probably Canada goose eggs, found abandoned on a minimal nest a couple of feet away from the lake. They stayed for several days before being eaten.