Bermuda petrel  (Pterodroma cahow)

The Bermuda petrel was once abundant throughout the islands of Bermuda, with numbers as high as 500,000 individuals. It is now present in very low numbers (approximately 180 individuals) on the smaller islands of Bermuda during the breeding season and further north along the western side of the Gulf Stream during the non-breeding season. It has been seen off the coast of North Carolina, USA, as well as in the Azores (2).

Previously an inhabitant of large islands, the Bermuda petrel used to burrow into soft soil to nest. Having been driven to local extinction on these islands by introduced mammals, it has been forced to nest in crevices on smaller islets as the soil is not deep enough to burrow into (5). It ranges widely over the ocean when feeding (5).