As I say to all my customers, prospective and exsiting, moles are very aware when the over lapping tunnel network has been vacated, and if the food source is abundant then another mole is more than likely to move in. 1. Moles are very territorial, and will fight to the death 2. They travel at 4 metres per hour in an established run 3. Work-sleep-work in 4 hour shifts 4. The run is established primarily for food, but also facilitates sleeping and breeding (February to June).