Pebble Island
Pebble Island can be divided into a marshy east, known for its waterfowl and wading birds as well as a hilly west, known for its penguins. The Pebble Island group, including the much smaller White Island and some islets, has been identified by BirdLife International as an Important Bird Area (IBA). Birds for which the site is of conservation significance include Falkland steamer ducks (100 breeding pairs), ruddy-headed geese (175 pairs), gentoo penguins (1700 pairs), southern rockhopper penguins (6800 pairs), macaroni penguins (10 pairs), southern giant petrels (20 pairs), sooty shearwaters (100 pairs), striated caracaras, white-bridled finches, blackish cinclodes and Cobb's wrens. black-necked and Coscoroba swans breed on the main island.