confusion re Black-headed/Grey-headed came from as I don't think I have seen a Grey-headed with such a dark head and no white on the throat/submoustachial stripe.
More gripping photos- from you, now, Dave ! I can’t take much more of missing all these waggies.
BTW, one of the West Runton birds (from 13 May 2006) was almost exactly the same. (Poor photo below.)
At the distance I originally saw it, and in the rush to put out the news, I’d wrongly called it feldegg, too.