I approached these birds and there was no flight. Here was another pair of Domestic Geese on a drive that I do several times a week. I have never seen them before. The Graylag seemed to be protecting the much larger bird. Sorry about the dark pictures, but I couldn't get behind them to get the sun in my favor.
It baffles me why any owner would allow these kinds of birds to roam free during a very active hunting season.