Hi I’m in the uk and we have lovely weather this week, 18 degrees which is lovely. My two Russians are in an insulated heated shed where they can please themselves if they want to go out or stay in, once I’ve opened the hatch doors. Since the nice weather I’ve had their lamps on till 10 30 and by then they can’t wait to be outside. They stay out till around 12’0’ clock then go in for their siesta, but that’s it then they don’t come out again. I’ve tried putting their food outside to tempt them out but no they stay in a corner until the next day. Is this normal ?