With regard to Dave's comment about the late warblers, I think that he probably correct, but what is more interesting is the 2 Willow Warblers - now that is late after a spring when I have seen very few! I trust that Gilly's kneecap remains where it should be!
As we came out of the hide a Bonelli's Warbler was on the chainlink fence. Were these last two late arrivals or early leavers as they were both not where they were supposed to be? On the causeway Gull-billed and Sandwich Terns were seen.