Mink are blamed for decimating a colony of seabirds on the Western Isles of Scotland. A colony of 200 pairs of adult terns are struggling to raise just 5 or 6 chicks this season, where normally the group would have at least 100 surviving hatchlings. The mink prey on other native species, including voles. The mink are believed to have been brought to the island from the US to stock fur farms, but were set free as the demand for fur dropped. Read the full story Mink ‘run amok’ in bird colonies on the BBC.