Gronant Little Terns

On my way back from Anglesey recently I stopped off at Gronant along the North Wales coast. The area is well known for its nesting Little Tern colony, and is one of the most important sites in the UK, holding over 10% of the UK breeding population. It is also the only breeding colony in Wales.
They migrate here from West Africa and make their nests on the beach. Special wardens keep a watch over the nest area 24 hours a day to deter would be predators.
For the smallest of our Terns they do make a lot of noise. If you can't see them overhead you'll certainly hear them.

Really beautiful little bird.