Scientists identify glue-like substance

Chemists at Plymouth University have identified the sticky substance that has killed hundreds of sea birds off the Devon and Dorset coast.

Their findings suggest it's a form of Poly Isol Butene, or PIB, used as a lubricating additive in oils to improve performance.

Tamsin Eames reports:

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Birds released after clean-up

Some of the seabirds washed up on the Dorset coast covered in an oil-type substance have been released back into the wild today.