Since the
All of our chicks are ringed before they fledge the nest. Sadly, not all chicks make it this far: a chick died in the nest in 2016, 2019, and 2020, and in 2024 an egg failed to hatch.
Ringing the osprey chicks enables us to follow their progress as they grow up, nest and start to raise chicks of their own. Indeed one of our first chicks, Blue 7A, has been breeding at Esthwaite since 2017.
It's fantastic when we get positive news that at least some of our other chicks have survived their first migration too – see the reported sightings in the table below.
| Hatched | Leg ring colour ID/name | Gender/weight when ringed | Sightings |
| 2024 | Blue 0C6 | Male (1.45kg) | |
| 2024 | Blue 0C5 | Male (1.58kg) | Photographed in Portugal October 2024 |
| 2024 an egg failed to hatch | |||
| 2023 | Blue 8C3 | Female (1.73kg) | |
| 2023 | Blue 8C2 | Female (1.52Kg) | |
| 2023 | Blue 8C1 | Male (1.45kg) | |
| 2022 | Blue 479 | Female (1.8Kg) | |
| 2022 | Blue 480 | Male (1.7Kg) | |
| 2022 | Blue 481 | Male (1.4Kg) | |
| 2021 | Blue 464 | Male | |
| 2021 | Blue 462 | Female | May 2023 spotted on Foulshaw nest web cam visiting. Seen off by Blue 35! |
| 2021 | Blue 463 | Female | |
| 2020 | Blue 410 (Yan) | Female | |
| 2020 | Blue 411 (Tan) | Female | |
| 2020 | Deceased sibling of Blue 410 & Blue 411 | unknown | |
| 2019 | Blue 3N (Known as Biggie) | Female | |
| 2019 | Blue 2N (Known as Tiny) | Male | |
| 2019 | Deceased sibling of Blue 2N & Blue 3N | unknown | |
| 2018 | Blue 5N | Male | Sighted overwintering in the Gambia |
| 2018 | Blue 9N | Female | |
| 2018 | Blue 7N | Male | Spotted wintering in southern Spain |
| 2017 | Blue U9 | Male | |
| 2017 | Blue U0 | Female | |
| 2017 | Blue N0 | Male | May 2020 filmed inspecting an occupied nest in Montogomeryshire Wildlife Trust Dyfi Reserve. See film below. Seen again in 2024 at Dyfi in Wales |
| 2016 | Blue V8 | Male | Sighted again in the Gambia Autumn 2021 Spotted in the Gambia in January 2021 at Tanji Bird Reserve by Fansu Bojang. Photographed at Leighton Moss in 2019 |
| 2016 | Blue V9 | Male | |
| 2016 | Sibling of V8 and V9, lived for 3 days. | unknown | reason for death unknown |
| 2015 | Blue V2 | Female | |
| 2015 | Blue V3 | Female | Sighted at Kielder in 2017 |
| 2015 | Blue V4 (Known as Little Chick) | Male | Between 2018 - 2020 nesting in the wider Dunkeld area, near Loche of Lowes in Scotland, and has fledged six chicks. However, his nest was unsuccessful in 2021 and his mate failed to return the following year, which may explain his interest in the webcam nest at Lowes in 2022. |
| 2014 | Blue 5A | Female | |
| 2014 | Blue 6A | Female | |
| 2014 | Blue 7A | Male | Breeding at Esthwaite since 2017. |
