There were several piles of rubbish up the drive and at first I assumed that someone had been fly-tipping. I think it is actually the result of some clearing up as the piles were fairly neat.
I had to look up the term "fly-tipping" since this is not in my known terminology. Turns out it is illegal dumping. No matter how you say it, this is bad behavior. Glad in your case, it was part of a clean up operation.
Good to see I'm teaching you some UK terminology. I did wonder if people would know that one.