Wednesday 27th October 2021, 11.30am (day 3,716)

The community of pigeons that live in Hebden Bridge town centre sometimes act as one, particularly when it comes to their group callisthenics. They take off en masse, circle round for a while, then all land again. This flock was so large that here you see both the ones nearby, and those in the distance, already further round the circuit. Military exercises spring to mind — the ducks must be worried.