There’s a roost of Rock pigeons at the old school, they nest in one of the side buildings. When they hear anyone approach, they come flying out of this tiny opening, and head for the roof. (The opening is underneath the overhang they are on.) When you approach again, from the other direction, they all head back into their roost. Naturally, I had the wrong lens on my camera, but it’s great fun watching them. Click images for larger size.