Weird goat-bird hybrid in Scotland

Occasionally I like to look at places on Google Street View at random, and the other day I found myself on a remote country road in north Scotland. In the distance I saw some sheep, so clicked for a closer look, only to find something strange about one of them. One was a goat, but it seemed to have wings. I looked at it for a bit, and even counted the number of legs to make sure it wasn't two animals, one in front of the other. I wonder how much you can expect to pay to eat goat wings...