Seabirds are mistaking elastic bands for worms, and carrying them back to a remote Cornish island, experts believe.
National Trust rangers on Mullion Island, off the Lizard Peninsula in Cornwall, were left baffled after finding thousands of multi-coloured rubber bands lying in roosting sites and strewn across the tiny outcrop.
Small pellets of green fishing net and twine were also uncovered suggesting the birds had regurgitated them, along with the elastic bands, because they could not be digested.
The rangers believe the birds are mistaking the bands for worms while feeding in agricultural fields on the mainland.
Swallowing plastic or bands is dangerous for seabirds as it can become lodged in…