I’m in Kent and have some releases from Medway hedgehog rescue staying in my garden..
It’s been quite mild and apart from some frantic gathering of bedding material recently, the hogs have been active. (Also drinking LOTS of water).
Then the high pressure brought frosts and for 2 days there was no activity, so I stocked the feeding stations with dried food and turned my trail-cam towards the area the foxes come looking for scraps, thinking my hog-feeding was over until the spring.
Then the temperatures rose slightly and now the hogs are out again!