Preliminary data on the foraging habitat use by gentoo penguin in Byers Peninsula (Livingston Island) and chinstrap penguin in Deception Island, South Shetlands

Data of basic parameters of foraging behaviour (foraging trip duration, total foraging trip distance, and maximum distance from the colony) and of foraging range for Gentoo penguin and Chinstrap penguin studied in Byers Peninsula and Deception Island respectively are given.