Mystery Yellow Wagtail variant (Israel) (1 Viewer)

[melamedon]

Hello all,
I saw this Yellow Wagtail in North Israel on April 1st, when I was looking for another rare variant I've seen there a day before (I am suspecting a xanthophrys-type intergrade). Pictures of both the suspected xanthophrys-type intergrade and the mystery bird, which I identified as Western/Eastern Yellow Wagtail appear in this ebird list:

https://ebird.org/checklist/S132373902

Also, I have uploaded two short videos showing the mystery bird foraging and chirping to my flickr acount, here:

https://flic.kr/p/2oqsdya

https://flic.kr/p/2oqsJbN

I would appriciate any insight regarding what subspecies/variant that mystery bird might be. Also, comments on the suspected xanthophrys-type intergrade will be highly appriciated.

Thank you,
Daniel