Areas with growing pine marten populations have seen grey squirrel numbers fall as they provide easy prey for the predators – unlike native reds, a new study shows
The invasion of grey squirrels that has decimated native reds across the UK is reversed when pine martens prowl the woods, new research has shown. Unlike reds, grey squirrels appear to be easy meat for the predator.
Pine marten populations have also been drastically reduced in the past. But where they are recovering, they send grey squirrel numbers plummeting while reds thrive, according to scientists.