Seems to be a pretty good Lesser Scaup wing pattern?
Nice amount of restricted black on nail
peak on head seems to far forward
black on nail can look larger at times, confusingly so! Maybe due to water on bill?
head shape just before a dive
In the field it looks to be slightly larger than a Tufted Duck and the mantle has very faint vermiculations, views are alright probably around 500 m away from Garganey hide
Is this what a Scaup x Lesser Scaup looks like?!