Little tern recovery in England

This 23 November 2018 video says about itself:

Little Tern Recovery Project in the South East of England

For five years, we have been working as part of the Little Tern Recovery Project, to help increase the breeding population of rare little terns at our RSPB Langstone Harbour and RSPB Pagham Harbour reserves. Find out what we achieved, and how our staff and volunteers have helped to give little terns a safer home in the South East of England.