Current status of the endangered Hawaiian Dark-rumped Petrel Pterodroma phaeopygia sandwichensis at Haleakalae and Hawaii Volcanoes National Parks

The Hawaiian Dark-rumped Petrel Pterodroma phaeopygia sandwichensis is Hawaii's only endangered seabird species. Once found throughout the Hawaiian Islands, the species is now confined to high elevations. Habitat loss and predation by introduced predators caused the decline of this species. Currently, known nesting populations are located only on Haleakalae, Maui and Mauna Loa, Hawaii. Observations have been made of Hawaiian Dark-rumped Petrels flying to mountains on Kauai. However, nests have not been found. We present the status of the Haleakalae and Mauna Loa populations, population trends, current threats, and management activities.