I have also seen hundreds of common sands. I should get a better camera - thanks guys! I am happy that they are Temmincks Stint.
Thanks for your comments people - I think the poor quaility of the shot and lack of description on my behalf has caused some confusion. The two smaller birds are definetly stints - they were far too small to be common sands (approx half the size of the Dunlin), did not call like a comm sand and had much more white in the tale... I am happy that they are Temmincks Stint. Oh and I saw them in Crete.