It is believed to be the second time the evil marksman has struck in the same leafy suburb after six hedgehogs were slaughtered in the same way and displayed outside a Tesco store last year.
Tracy Okten discovered the grisly scene after being alerted by a friend who found the remains while out walking her dog in Cherry Hinton, Cambridge.
Three of the creatures were displayed as trophies while another six or seven were discovered dumped in a bush nearby.
Tracy, 49, said: “I cannot imagine what would make someone want to do something like that.
“Another three hedgehogs are lined up. They all seem to have been shot again with a crossbow.
“In some bushes nearby, there are some other hedgehog corpses as well. There could be as many as 10 altogether.
“It is very like what happened a year ago, whoever is responsible is obviously a lunatic.
“I really can’t imagine what would make someone want to do something like that.
“They’ve obviously taken advantage of the fact that there are lots of hedgehogs about again, and of course they’re so slow moving it’s probably not too difficult to shoot them.
“Sadly there will be some baby ones about soon, and I just hope they’re not shot too. It’s absolutely disgusting.
“I don’t understand why someone is allowed to have a crossbow it’s a very dangerous weapon.”
The RSPCA branded the last batch of killings in July last year as “one of the most malicious incidents of animal cruelty” they had to deal with.
Local residents put up a £200 reward for information leading to the conviction of the killer but no-one was ever found.
Yesterday (Mon) a spokeswoman for the RSPCA said the charity had been alerted to the latest incident and would be sending an inspector to investigate.
She said: “This sounds a very distressing incident, and it may be that we will wish to refer the matter to the police once our inspector has been able to have a close look at the scene.” ENDS