Gary, I've done the same twice this spring/summer, and they've had to be removed, that's the deal. However, walking the terrier last week around the plant where I park up, and there were two cubs rolling in the dust, play fighting, about 100yds away. The cctv picked them up too, all FOUR of them running round the area like they owned it! I've found that they're kipping on the motorway embankment during the day, but they're safe for now.