GPS being used to track a herd of wild goats in Northumberland
Satellite technology is being used to track a herd of wild goats in Northumberland.
Experts from Newcastle University hope to map the movement of England's most northerly population of wild goats.
The goats roam the Cheviot Hills, and are often seen around Yeavering Bell - "The Hill of the Goats" and the site of an Iron Age hillfort.
The aim of the GPS collars is to find out where the goats are foraging and how much damage they may be causing.
The area in which the goats are found contains open moorland, woodland and Sites of Special Scientific Interest (SSSI), so the area is a potential site of conflict between the goats, conservationists and farmers.
The goats are believed to be descended from the original goats introduced by the first farmers of the Neolithic period.