Here’s a little story from the bishop of Arua, who was recently in Kampala, Uganda at the same time as me:
When I was a young boy, the men of the village used to hunt birds with guns. The guns would fire many bullets at once (he was referring to birdshot). One day, my father came upon a very large tree, and in that tree sat many, many birds – one hundred or so. He took aim, fired, and from the tree to the ground fell about forty birds.
Approximately how many birds remained in the tree?