These were the most prevalent 70+. Did you pick them out? Feeding was frantic, maybe they knew it was time to top up and go.
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see previous comment on "Redshank" photo; sorry
Feel free to look at my ongoing (hopefully improving) collection of pictures on Flickr:
Lat/Lng: 51.381, 1.3151
OS grid ref: TR307698
At the edge of the high tide.