When I first moved to Winchester, I was initially staying in a couple of Airbnbs before we moved into the house we are renting. One of them was up in the roof of an old school building. The view out of the windows was across the rooftops of the neighbouring houses. The chimney pots caught my eye. One of them seemed to have a serious branch growing out of it. I think it was dead, but it did look like it had done well to get established in the brickwork.