Walking home alongside the Union Canal as dusk was falling on an autumn day, when I saw this flock of birds wheeling and turning, all in tight formation, just behind some tenements, circling and turning, lower on each pass. I barely had enough time to get a couple of very hurried photos before they dipped below the line of the buildings and out of sight, but what a lovely thing to come across on a stroll home, a little bit of natural magic.