There has yet to be any discussion on surfbirds about this bird, though I note the chattering classes on BF have dealt with it. It was not until Lee Gregory's photo was posted on surfbirds that it's identity was really sorted out.
I went to see it this morning, and though it was misty the plover showed quite well and I took the images below - sorry about the quality, but they were taken as stills on my video (it was not that close).
It has some obvious features:-
- There are two ages of scapulars and coverts: the new black-centred and broadly golden-fringed scaps are fresh and quite short (not fully grown), and contrast with the older faded and off white-edged lower scaps; the new coverts and tertials are similar, with large golden notches contrasting with the narrower, pale edges of the older feathers.
The left wing is longer than the right wing, and hangs a little showing the white shaft; it also appears as if there is a larger gap between the longest primary and the next - perhaps there is a broken feather. On the right wing the primaries are evenly spaced, but certainly look shorter. In my notes, I would guess that the extension o the right wing beyond the tail tip is 10-12mm, but 4-5mm longer on the left wing (the extension is equal to the length of the bill back to the lores), and such an extension is pretty typical of AGP.
There are some new dark grey feathers coming through on the breast sides.
The crown is dark, the bill is quite slim.