| A few years ago, a colleague and I were chatting in my office at the end of the day when the caretaker rushed up and told us to come round the back of the building where there were "thousands of dragonflies". We looked at each other and both thought "there'll be one or two" but when we went round we discovered, if not thousands, then certainly hundreds. They were feeding on a swarm of flying ants that were emerging from somewhere at the base of the building, climbing up the wall and launching themselves from the top of the wall. The dragonflies were catching and eating the ants in flight - you could hear the munching sounds quite clearly! We watched for several minutes - it wasn't really possible to get an accurate count of the number of dragonflies as the movements were so swift and continuous.
henrya |