The third of the sp feeding frantically at high tide (20+).
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the main image is certainly redshank;
I think the other two pictures (1772a & 1778a)also contain Sanderling (paler & smaller) and Turnstone. ? - just a thought.
Feel free to look at my ongoing (hopefully improving) collection of pictures on Flickr:
as this was the lead photo to this pic along with http://www.ispot.org.uk/node/321245 and http://www.ispot.org.uk/node/321252 with the above of course. However I also missed spotting the Dunlin in the picture which others also thought there may well have been.
Lat/Lng: 51.381, 1.3151
OS grid ref: TR307698
At edge of littoral zone and on promenade.