http://waarneming.nl/waarneming/view/46827893 (http://waarneming.nl/waarneming/view/46827893)
I am not sure what this is ?
It can not be Smient x Baikal Taling due to the rusty coloration bleeding into the flanks.
Both those species suggested by the photograopher have grey flanks and the only hybrid of the two I have seen so far in photo also had grey flanks.
But blue bill suggests a wigeon parentage, so why not a sibilatrix hybrid as chili smient hybrids often have the flanks partly rusty coloured?
look at theese clypeata x penelope slobeend x smient which are superficially similar
but with slightly differently coloured flanks, scapulars and tail and undertail coverts,
http://waarneming.nl/soort/photos/106815 (http://waarneming.nl/soort/photos/106815)