Wildlife cameras have failed to explain why the last known colony of puffins on the south coast of England has failed to raise young.

In 2023, naturalists noticed that the seabirds near Swanage, Dorset, had stopped bringing fish to their nests on the cliffs.

They speculated that rats or crows had eaten the chicks.

However, motion-sensor cameras installed at the site in 2024 have recorded no predators and have not provided any other explanation, the National Trust said.