A hedgehog story....
I was in New Zealand in a reserve on North Island when I found typical hedgehog droppings. So I went to the Ranger Station and reported what I'd seen, why I recognised them (live in England, hedgehogs in the garden), and their grid location. The Rangers were very pleased to get the report, for hedgehogs are a pest in NZ because they eat the eggs of NZ's many ground-nesting birds.
Shame for the antipodean 'hogs but I think the birds deserve not to have predators introduced by humans from the other side of the world.