Hi JMG
Try not to worry too much, they may have gone off to hibernate. It’s that time of year. Always a bit worrying. But hopefully having had supplementary feeding from you, they will be in good condition for hibernation. Fingers crossed they all return fit and well in the Spring. Most of the hog visitors from here have gone too.
You will hear about some hogs still around, but it varies from place to place, town to country, etc.
You might be interested in this, if you haven’t already seen it:
https://www.hedgehogstreet.org/should-i-keep-feeding-hedgehogs-over-winter/
