Birds for which the site is of conservation significance include blackish cinclodes, Cobb's wrens, dolphin gulls (500 breeding pairs), Falkland steamer ducks (600 pairs), Magellanic penguins (10,000 pairs), ruddy-headed geese, sooty shearwaters, southern giant petrels (1,000 pairs), striated caracaras, and white-bridled finches.