Scotland's puffin colonies face possible collapse by mid-century
Scientists warn that up to 89% of the UK's puffin population could disappear by 2050, driven by climate change, overfishing and harsher storms.
A new forecast from the British Trust for Ornithology indicates that 89% of puffins breeding in the UK and Ireland could be lost by 2050, a decline linked to climate-driven changes in the marine environment. Data from NatureScot reveal a drop of over 15,000 occupied puffin burrows nationwide in the past two years, with the Isle of May National Nature Reserve seeing its burrow count fall from 52,000 in 2024 to about 36,500.
Scientists point to rising ocean temperatures, more frequent extreme winter storms, and a steep reduction in sandeel populations—an essential food source—driven by overfishing and climate shifts. Since 2024, commercial sandeel fishing has been prohibited in Scottish and North Sea waters, a measure expected to bolster the food chain. Scotland hosts the largest puffin colonies, including roughly 130,000 breeding pairs on St Kilda. Ongoing efforts such as the Scottish Seabird Conservation Action Plan and new monitoring technologies aim to safeguard the species and improve habitat protection.
Why it matters
Puffins are a key indicator of marine ecosystem health and a major draw for tourism in Scotland.
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