Population numbers and breeding success of Gentoo penguins (Pygoscelis papua) at Port Lockroy, Goudier Island, 1996 - 2020

The colony size and breeding success of Gentoo penguins (Pygoscelis papua) on Goudier Island, monitored annually 1996 - 2020. The data presented here includes the number of breeding pairs, the number of chicks that hatched from their eggs (approximately the mid-point in the annual breeding season) and the number of chicks present in creches at defined sub-colonies prior to fledging.