Sadly this is the fate of many of our Hedge hoggs.
It is also why we must all try and do our bit to preseve them
Giving a Hedge hog a home, and room to rove beteeen gardens is important. ( leave a small gap in your fence).
Leave a little food out for them and check they are not sleeping under any bonfires you light.
Give them a fighting chance of survival before its to late.