On the trail of the Great Glen's feral pigs

Herds of feral pigs are said to be out of control in the Highlands' Great Glen.

The animals have been blamed for killing sheep and damaging grazing land on crofts and farms.

There are calls for a reduction in numbers of the pigs, which include escapees and others that have been illegally released to roam free.

But national agency NatureScot said there could be a few thousand feral pigs across Scotland and primary responsibility for dealing with them lay with individual landowners.