Pretty busy by the time we walked across, but not too bad. No sign of the 6 Yellow Wagtails that Peter Howlett had seen on the barrage earlier, but I soon relocated them in the grassy area behind the green chainlink fence opposite the swift tower. Never very close but I managed a few record shots through the fence. At least three Whitethroat were singing a bit further along and an obliging Song Thrush was singing by the swift tower. The Sand Martins are now visiting holes in the old feeder dock. On the way back a female Wheatear was on the outer barrage rocks.