Must be a Houdini mouse .Dormouse would asleep this time of year.
It's only a personal thing but I don't like leaving squirrel cage traps set overnight in really freezing weather as the squirrels are not active in the dark anyway and any non-target that may get caught after dusk is going to have a miserable time.
well it was not a rat as th ears were large, maybe a fieldmouse? at around 9am the work starts around my gardena nd any squirrels which were around usually bugger off as they are used to associating humabs with dangers (i.e bang, whizz, mate falls to the floor twitching, not fee