Breeding success of Gentoo penguins at Bird Island, South Georgia, from 1981 to 2025 - VERSION 2.0

The breeding success (calculated from nest and chick counts) of Gentoo penguins is monitored annually at Bird Island, South Georgia. The number of incubating nests and chicks reaching fledging stage are counted in several Gentoo penguin colonies. Data exist from 1981 onwards. This dataset is an updated version of Trathan, P., Waluda, C., & Ratcliffe, N. (2021). Breeding success of Gentoo penguins at Bird Island, South Georgia, from 1982 to 2020 - VESION 1.0 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/c8d5a7a4-e19b-497f-b7ae-56f9a2b15a56. The update consists of five additional years of data. No changes have been made to the data included in the previous dataset. This work was funded by Natural Environment Research Council (UK) core funding to the British Antarctic Survey.