Annual measurements of body mass for chinstrap penguin chicks at Signy Island, from 1997 to 2020.

This datasets captures the annual measurements of body mass for chinstrap penguin chicks at Signy Island, from 1997 to 2020. Between 50 to 100 chicks are measured, with 3-5 weighing sessions carried out in the period before fledging is complete. This monitoring contributes to the CCAMLR Ecosystem Monitoring Program (CEMP) and is part of annual monitoring carried out by the British Antarctic Survey. This work was funded by Natural Environment Research Council (UK) core funding to the British Antarctic Survey.