Concerns have been raised over the further spread of grey squirrels after sightings in the Cairngorms.
The Scottish Wildlife Trust (SWT) said greys were now spreading so far north its programme of culling them was the only way to save the native reds.
Evidence suggested the animals were travelling along the Tay, Dee and Don rivers towards the Highlands.
SWT has said it wants to cull all greys north of a line between Argyll and Angus to protect red squirrels. |
