I had a male and female hedgehog earlier this year from a local rescue, both born this year.
They both took in lots of bedding into their hog houses, but then bandoned them, preferring to sleep in neighbouring gardens, but coming back regularly to the feeding stations.
But then, still mild in October, first the male disappeared, followed by the female a few days later. When last seen they were very rotund!
I was concerned about them, but then I’m told by other local hedgehog carers that they too had experienced early disappearance of hogs in October. (I’m in Rainham, Kent).
I know that in normal years males can enter hibernation in September, with females maybe waiting until after Christmas, but given how mild it’s been, I was surprised they disappeared so early this year.
Mind you, everything has been very topsy-turvey in the garden this year, and both plants and creatures have been acting abnormally.