20 September 2017
Most of the seabirds examined for a study of the effects of marine plastic pollution had swallowed plastic.
Researchers, including scientists from North Highland College UHI's Environmental Research Institute in Thurso, investigated 34 species.
They found 74% of them had ingested plastic.
The research involved seabird colonies in northern Europe, Russia, Scandinavia, Greenland, Svalbard, the Faroes and Iceland.
Species with the highest levels of plastic ingestion included northern fulmar, Manx shearwater and herring gull.