Orona Atoll (Hull Island)

Year of compilation: 2007

Site description
Orona Atoll is a narrow ribbon of land that surrounds a sizeable lake.

Key biodiversity
The Atoll is a significant seabird nesting site.

Pressure/threats to key biodiversity
Invasive species are the most serious current threat. Cats are still present on the most recently inhabited island within the atoll and the two adjacent islets to the west, and are predating the sooty terns. Eradication is technically feasible. Pacific rats may have been eradicated recently, while dogs and pigs, both formerly present in numbers are now not present.

Conservation responses/actions for key biodiversity
Surveyed as part of the 2006 assessment of restoration feasibility (Pierce et al 2006), and considered for implementation of cat eradication on 3 of the islets that comprise the Atoll.

Protected areas
Part of the Pacific Islands Protected Areas.

Habitat and land use
The island is currently uninhabited although periods of occupation have resulted in the planting of over 20,000 coconut palms. Elsewhere scrub forest dominated by Pisonia.

Recommended citation
BirdLife International (2019) Important Bird Areas factsheet: Orona Atoll (Hull Island). Downloaded from on 26/05/2019.