A New Hope for Puffins on the Isle of Muck
For the first time in years, puffins have been spotted on the Isle of Muck in County Antrim. This remarkable event follows a major initiative to eliminate invasive brown rats from the island. The vulnerable seabird, which has not been recorded on the tiny island off Islandmagee since Ulster Wildlife took over the management of the seabird sanctuary 25 years ago, is now making a comeback.
The rat eradication program began in 2017, and winter grazing has been introduced to keep vegetation low, reducing cover for predators. This effort has created a safer environment for seabirds to thrive. Andy Crory, the charity’s nature reserves manager, described the discovery of the puffins as proof that seabird restoration works.
Folklore Becoming Reality
In 2024, five puffins were seen on the island. Then, in spring this year, cameras set up as part of the rat eradication program captured two puffins coming and going from a nesting burrow on the cliff ledges. Their behavior, bringing food back to the nest, indicated that they were breeding.
For Mr. Crory, tales of puffins once breeding on the Isle of Muck felt more like folklore. However, this myth is now becoming a reality. He emphasized that seabirds face immense global challenges, with 24 of the 25 breeding species at risk of local or global extinction. While a handful of puffins on a tiny island may seem small, this moment is significant—it proves that seabird restoration works.
Hope for Pufflings Next Year
The puffin sightings are part of a growing trend of positive signs indicating the impact of conservation efforts on the island. Annual surveys have shown steady increases in eider ducks, guillemots, herring gulls, and lesser-backed gulls on and around the island each year.
It remains uncertain whether the puffins seen this year successfully raised a chick. However, Mr. Crory remains optimistic. He hopes that the Isle of Muck will become a thriving stronghold for puffins and eventually attract other lost species like the Manx shearwater. For now, he is eagerly waiting to see if the first “pufflings”—baby puffins—appear on the cliffs next summer. That would truly be the icing on the cake.
Puffins are a priority species in Northern Ireland and are red-listed in the UK, placing them in the highest conservation concern bracket due to food shortages, climate change, and predation by invasive species. They spend most of their lives at sea, returning to land only to breed in spring and summer at the same nesting site with the same partner, year after year. Each pair raises a single chick during the breeding season.
Ulster Wildlife highlighted that rats are a major threat to many seabird islands across the UK, endangering eggs and chicks. The Isle of Muck is not accessible to the public, and it is hoped that its isolation will help the birds return safely next summer.
Other Conservation Successes
Similar rat removal projects have been successful elsewhere, helping seabird populations recover. On Rathlin Island, the LIFE Raft project is expected to publish its latest report soon, confirming the eradication of predators. Ferrets have already been removed from Rathlin in a world-first project.
Ferret detecting dog protecting Rathlin’s puffins
Woody the dog switches detection skills to save puffins
Ferrets in firing line as island traps activated
Rare bird breeds on island for first time in decades
Releasing stranded baby puffins on a remote Icelandic island