At lunchtime I went for a walk along the river to an area where I have often seen my first butterfly of the year, but there was nothing there. I told myself that I was being stupid as it was far too cold for a butterfly to awaken.
On my way back to the office I walked along a cold, shady pavement and noticed a little brown triangle out of the corner of my eye. I stopped to take a closer look and saw that it was a Small Tortoiseshell. It was almost certain to perish where it was, as the sun would never reach it and it was likely to be trodden upon.
So, I picked it up and carried it to a sunny spot where I put it on a Marigold. Almost immediately it opened up its wings and I hope it managed to have a feed to give it the energy to survive the remaining cold days of winter.