Hi, we bought two goslings from the local market last year and were asked if we wanted a Мъж (gander) and Жена (goose). To which we replied yes, please. So since then we have thought the grey one was a gander and the white one was a goose (especially due to the size of her undercarriage). Anyhow, this spring we have seen the grey one mating with the white one and eggs have started to appear. Brilliant! However, both the white one and the grey one sit on the nest (which doesn't overly concern us). But what does concern us is that we have noticed that the white one (which we thought was the goose) gets on top of the grey one seemingly mating with it. We are now very much afraid that we have two female geese and that the eggs are sterile. Has anyone else experienced a goose and a gander swapping positions while mating (ie. taking turns at being on top). Or is it as we suspect, we have two females? Many thank in advance for any advice.