Henderson Island Restoration Project
The endemic Henderson Fruit-dove (Michael Brooke)
Situated over 3,000 miles from the nearest continent, Henderson Island (Pitcairn Group, UK Overseas Territory) is one of the most remote islands on the planet, and the world's last large limestone island still in a near-pristine condition.
Uninhabited, and with almost no human influence at all, this remote paradise is home to over 55 species found nowhere else on earth, including four unique land-birds: the Henderson fruit-dove, Henderson lorikeet, Henderson rail and Henderson reed-warbler. The island, a global stronghold of the gadfly petrel group, is also the only known breeding site of the endangered Henderson petrel - amongst the most truly oceanic of all birds.
The island's beaches, meanwhile, provide crucial nesting habitat for endangered marine turtles. Combine this with nine plant species, eight species of snail and dozens of invertebrates all endemic to this island, and it is clear that Henderson is one of the crown jewels of UK biodiversity. Indeed, it is a designated World Heritage Site, making it one of the planet's greatest natural assets.
Despite being remote and uninhabited, Henderson’s unique biodiversity is currently under threat due to the presence of introduced Pacific rats. Evidence from fieldwork has shown that 95% of petrel chicks are killed within just one week of hatching (over 25,000 chicks a year). Since petrels lay only one egg in a clutch, this level of predation is simply unsustainable.
Seabird numbers have dropped from an estimated 5 million pairs before rats arrived to just 40,000 pairs today, and the Henderson petrel is being driven towards extinction. The rats are also likely to be reducing populations of marine turtles and other wildlife on Henderson, and suppressing the vulnerable populations of Henderson fruit-dove, lorikeet and rail.
If you would like to help us remove the rats, restoring the island and saving its unique wildlife, you can donate using our online form. You can also support the project by buying one of our exclusive prints of Henderson's endemic birds by renowned wildlife artist Peter Harrison.
Project objectives
- Carry out a rat eradication project on Henderson Island in July-September 2011, contingent on the required funds being raised.
- Prevent the extinction of the Henderson petrel (Endangered)
- Boost populations of the four endemic landbird species (all Vulnerable)
- Increase populations of the estimated 30+ endemic invertebrate species
- Allow the recovery of natural flora
- Dramatically boost seabird numbers on Henderson. Research suggests populations could increase by up to hundred-fold, creating a veritable haven for biodiversity in the middle of the Pacific.
- Involve the Pitcairn Islanders and other key groups in saving this World Heritage Site.
Key dates so far
- January 2008: A feasibility study commissioned by the RSPB found that eradicating rats from Henderson Island was technically feasible, though highlighted two outstanding questions which would need to be resolved before any eradication operation could proceed.
- August-September 2009: A field expedition to Henderson, part of the OTEP-funded project 'Preparing for rat eradication on Henderson Island World Heritage Site', resolved all outstanding issues and gave the green light for an eradication project to proceed.
Work planned or underway
The rat eradication operation is scheduled for July-September 2011, with the aim of being able to declare Henderson rat-free by late 2013, the 25th anniversary of Henderson's designation as a World Heritage Site.
Species affected (not UK birds)
Henderson Petrel, Herald Petrel, Murphy's Petrel, Kermadec Petrel
Henderson Fruit-dove, Henderson Lorikeet, Henderson Rail, Henderson Reed-warbler
Fairy Tern, Masked Booby, Red-footed Booby, Great Frigatebird, Red-tailed Tropicbird, Brown Noddy, Black Noddy, Bristle-thighed Curlew, Wandering Tattler.
Image gallery
Murphy's Petrel (Richard Cuthbert, RSPB)
Video
Downloads
Henderson Island FAQs
127Kb, PDF
Frequently asked questions regarding the Henderson Island Restoration Project.
Date: 11 November 2010
Who to contact
Jonathan Hall
Henderson Project Co-ordinator
E-mail: jonathan.hall@rspb.org.uk
Partners
The RSPB works in partnership with the Pitcairn Island Community, for whose support we are extremely grateful. We also work with the Royal Zoological Society of Scotland (RZSS), BirdLife International, the Royal Forest & Bird Protection Society of New Zealand, Island Conservation and Dr. Michael Brooke at the University of Cambridge.Funding
Initial feasibility studies were supported by the Overseas Territories Environment Programme (OTEP) and the David & Lucile Packard Foundation. Final preparatory work is being funded by the Packard Foundation. Support has also been received from the UK Department for the Environment, Food & Rural Affairs (Defra), the Critical Ecosystem Partnership Fund (CEPF), BBC Wildlife Fund, JNCC Support Co., Zegrahm Expeditions, The New Zealand Society and Projects Abroad.
The eradication project can only proceed when the requisite funds (£1.7 million) have been raised.
If you would like to help us raise these funds and join us in protecting Henderson's unique biodiversity, you can donate using our online form, or by contacting David Agombar (david.agombar@rspb.org.uk).
NEW: A limited issue of unique Pitcairn Island stamps, showcasing the 5 endemic bird species of Henderson Island, are shortly to be released by the Pitcairn Islands Philatelic Bureau. NZD$1.00 from every purchase will be donated to the Henderson Island Restoration Project. For further details, please visit here.