Once released, they are monitored and fed, on feeding nests, but otherwise left to explore the area and move further afield. Once they migrate, they have no satellite tracking, so their fate will only be known if they return to the UK and can be identified from their leg rings or head markings. Over the last 4 years, over 40 chicks have been translocated, most surviving and leaving the area on migration. Some have returned, one relocated to the Wales population, and a Rutland female, ringed CJ7, has relocated to Poole harbour & formed a pair bond with 022, a male translocated and released in 2019.
Photo: Male 022 and female CJ7 on the nest showing the sexual size difference, the female is 20% heavier than the male.