According to the Lundy Field Society and The Landmark Trust, Lundy Island off the southwest coast of England has seen its breeding puffin population rebound from just 13 individuals in the year 2000 to 1,335 today, following a comprehensive invasive rat-eradication project launched in 2002 to protect vulnerable native seabirds.
Lundy Island Seabird Recovery and Rat Eradication
Brown rats (Rattus norvegicus) were introduced centuries ago via ships and shipwrecks, finding an isolated habitat devoid of natural predators. They multiplied rapidly across the island’s steep cliffs and grassy slopes, preying heavily on eggs, nestlings, and adult birds. By the year 2000, according to historical surveys cited by the Lundy Field Society, seabird numbers had plummeted from an estimated 80,000 in 1939 down to 7,351. Puffin counts crashed to a mere 13 breeding pairs, pushing the local population to the brink of extinction.
To reverse this ecological decline, a partnership involving the Lundy Field Society, The Landmark Trust, the RSPB, Natural England, and the National Trust launched a targeted eradication project in 2002. Conservation teams deployed careful baiting strategies, intense monitoring, and strict biosecurity protocols designed to protect livestock, human residents, and non-target species. The island was officially declared rat-free four years later, in 2006.
Soaring Populations Among Puffins and Manx Shearwaters
Once the predation pressure lifted, the ecological response was swift. According to recent data provided by conservation partners, total nesting seabirds on Lundy have surpassed 40,000 individuals—representing the highest figures recorded since the 1930s. Puffins have surged past the 1,300 mark, reoccupying historical burrows and successfully raising chicks year after year.
Other burrow-nesting species experienced even larger numerical shifts. The island’s Manx shearwater population climbed from fewer than 600 birds in 2001 to more than 25,000 today. Lundy now hosts roughly 95 per cent of the species breeding in England. Additionally, storm petrels returned to breed on the island, with over 150 pairs nesting since their first confirmed breeding in 2014.
Ongoing Biosecurity and Future Conservation Challenges
Maintaining a rat-free status requires constant vigilance. According to project management guidelines, Lundy enforces rigorous biosecurity protocols, inspecting all incoming vessels, cargo, and supplies for rodents. Staff, residents, and visitors maintain active trapping networks and report any suspicious activity immediately to prevent a reinvasion.
Despite these terrestrial successes, conservationists warn that marine habitats remain vulnerable. Helen Booker, RSPB senior conservation officer, noted that while the island enjoys land-based protections, the surrounding waters utilized by foraging seabirds lack adequate assessment and formal safeguards. Consequently, the RSPB is advocating for Lundy to be designated as a Special Protection Area to shield the birds at sea.
Did You Know?
Storm petrels are among Europe’s smallest seabirds. On Lundy, they nest in dark rock crevices and return to their burrows exclusively under the cover of night to avoid avian predators.
Frequently Asked Questions
How many puffins currently live on Lundy Island?
Recent conservation surveys count approximately 1,335 puffins on Lundy, marking a massive recovery from the low point of just 13 individuals recorded in 2000.
When were rats eradicated from Lundy?
A collaborative conservation partnership launched the eradication initiative in 2002, and the island was officially declared rat-free four years later in 2006.
What other seabird species have returned to the island?
Along with puffins, Lundy now hosts tens of thousands of guillemots, razorbills, Manx shearwaters, kittiwakes, fulmars, and breeding storm petrels.
Want to stay updated on marine conservation breakthroughs and island restorations? Subscribe to our newsletter or explore our archives for more wildlife reporting.
Related reading