Summer bird Quiz

Being a relative novice to bird watching I can only hazard a wild guess . So I'll say some type of Tern which has black legs ! bet it's a rare one knowing your expertise and not seen very often in UK ....Caspian ?      

The bird looked quite large in D's photo and I was lucky enough to see a Caspian Tern three years ago (around this time of year) at Leighton Moss with its huge carrot bill although in flight I had nothing to compare it with size wise as it flew in circles over the Causeway pool.      I really hope it's a CT   -  please say it is   lol         Would love to see one again.

Well done H- gottit in one-

As Robbo says- notice how small the Common Sandpiper looks!

S

Thanks for the challenge, you lucky lad seeing this one, it's a stunning looking tern.