Hello,
Interesting bird, do you have more pictures?
I think the choice is between a 2cy female Scaup (excluding a Lesser Scaup just by location, is this justified?) and a Tufted Duck x Pochard hybrid.
On my actual device, the eye seems darkish, warm olive with an dirty orange tinge? And the base of the bill seems darkish, but this might well be the result of artifacts and picture quality
If these two points are actually real, than it might well be the mentioned hybrid combination.
I hope for more pictures and comments. Thanks!