For those who might not have actually recognised the term it was a "traveller's site"
Traveller's is the catch all term over here for the collected "irish (many generations ago) tinkers/gypsy families /thieving, littering gits" who roam around in a pseudo-nomadic lifestyle.
Not to stereotype them, I've met some who are perfectly nice folks if you treat them as everybody else and earn their friendship.
The trouble is, I've also met plenty of the other sort who set up camp on the common, trash the place, leave shattered beer bottles and such around to injure the locals dogs, steal the milk from your doorstep, act bolshy when you find them trying to get up the sidewalk of your house, and then complain about human rights abuses when the police come to move them on from where they're illegally camped.
So, not exactly the "common / normal" of the UK population.