I totally agree Kate, at this time of year it's vital to check bonfires before lighting. Also, empty the compost heap out now or leave it, as you say, until spring. There's no point leaving turfing out the heap as a winter job when you might uncover hibernating hogs, and other creatures, which will likely die because of the disturbance.
Thanks for highlighing their plight! Alas, I have none to save, but those who do should take note!