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(A) Position of colonies at Kerguelen where measurements were performed on Kerguelen Shags and Gentoo Penguins. Colonies in red are inside a shallow and closed sea (the Golfe du Morbihan) and colonies in black are facing the open ocean. (B) Average body mass (±SD) and average wing/flipper length (±SD) of Kerguelen Shags (left) and Gentoo Penguins (right) at these colonies. Redrawn after [39].
