Was doing the shop in Lidl yesterday and they seem to have their Deluxe range expanded for christmas. They had venison (sadly from New Zealand), Reindeer, Ostrich, Kangaroo as well as British Pheasant, Red Leg Partridge and Quail. Pretty impressive for a 'budget' supermarket, I doubt you'll see that range in most others. Good prices too.
They also have a £25 spotting scope coming up this week too which I may take a punt on.