Female flava wagtail Anglesey May 2021: Suggestion on race? (1 Viewer)

[Keele birder]

Any thoughts on racial id. of this bird. Could probably never be certain or rule out hybrids, but comments would be welcomed.

 

[lou salomon]

very hard if not impossible in most females (like this) but that half supercillium suggests a hybrid. not sure how female channel wagtails look but I'd have imagined a dark capped ssp. like thunbergi x flava to look alike.

 

[Keele birder]

very hard if not impossible in most females (like this) but that half supercillium suggests a hybrid. not sure how female channel wagtails look but I'd have imagined a dark capped ssp. like thunbergi x flava to look alike.

Thanks, yes, I was thinking possible thunbergi or thunbergi x flava.