Look at those sunlit clouds. It's rare to have a day so fine.
Nice to see a thriving colony of Sandwich Terns. I can see young birds in your photo. They have speckled markings on their backs. If two young survive, each parent will assist one youngster on migration, I've seen this in Spain during September, the adult being pestered almost non stop by the youngster!!
With Jeff's guidance I can just about make out a couple of young tern in the foreground of the group. Looking back on that day at Walney I think finding the sandwich tern was the particular thrill.