No interactions present.
the dark tip to the bill of the male bird seems quite broad and there is perhaps a hint of a crest (certainly the head shape is not round as in Scaup) also, having turned the image the right way up, there could be a pale band behind the dark bill tip of the female.
Of course the female bird could be a Scaup x Tufty hybrid, its head does look very round and there is much white at the base of the bill.
Lat/Lng: 51.5732, -0.755
OS grid ref: SU863867