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Do you have any shots which give better details on the feet? I ask that as this bird is not particularly bright (which is sometimes indicative of Semipalmated Sandpiper) and it would be good to see if there are palmations on the feet.
There is a huge influx of nearctic waders in UK at present and whilst I'm not suggesting it is a Semi-P at this stage, I think it would useful to see more shots if you have them.
I have lots of photos showing the feet. I have uploaded 2 of them. If these don't show what you want let we know what specific features you want to see and I'll upload some more.
Thanks Mike, pretty conclusive that it is indeed a Little.
Always pays to be careful.
Lat/Lng: 51.47352, -3.629556
OS grid ref: SS869762