The Scopoli’s Shearwater (Calonectris diomedea) is a pelagic species whose breeding area is almost totally confined to the Mediterranean. It currently nests in Pianosa with about 30-60 pairs, and on the Scola islet its population consists of about 150-200 pairs. Recently, a few pairs have also been reported in the north of the island of Montecristo. It nests on land but spends most of its time in the open sea for food. One of the main threats to this species is the black rat (Rattus rattus), which preys on eggs and nestlings.
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