[Suze65]

Colder nights and shorter days are triggers for hibernation wind down, so it's not surprising he wants to start winding down, if you want to stop this you will need to get him indoors under a basking spot for 12 hours a day, and put him out if the day warms up, I expect it's not warm up there. It's still summer down here and mine are all slowing down. Horsfields are natural diggers so I would give him some deep soil to dig into, they also have very long hibernation in the wild. If you want to hibernate him, I wouldn't let him dig himself down in the garden up in Scotland . You will need provide either, a cool part of the house ( un heated ) or an insulated shed with electrics , a tube heater on a thermostat set at 6c or a fridge , indoors at room temperature, set to 6c. Hope this helps