Two white ducks seem amongst Mallards. Are these Mallard variants?
No interactions present.
are mostly of mallard origin - the Muscovy is I think the only exception. There are all sorts of hybrids about - try googling for "manky" or "plastic mallards", and you will find lots of pictures.
Lat/Lng: 52.9282822, -1.1099662
OS grid ref: SK599371