Wigeon variant?

Wigeon variant?

Observation - Wigeon variant? - UK and Ireland. Description: When scanning a large number of Eurasian Wigeon this morning, i noticed a single bird with a distinct green stripe on its head and slightly darker head overall. Could this be an American Wigeon hybrid or a variant? Thanks for your help :) Sorry the photos

When scanning a large number of Eurasian Wigeon this morning, i noticed a single bird with a distinct green stripe on its head and slightly darker head overall. Could this be an American Wigeon hybrid or a variant? Thanks for your help :) Sorry the photos are not great!