I liked to watch the bees on the yellow coneflowers. At the end of the day they were usually quite tired and only moved slowly on the flowers. This wild bee crawled out like a springboard on one of the petals. I actually thought it would fly over to the next coneflower, but suddenly it had slipped and was visibly in need of returning to the flower.
I couldn’t see why it hadn’t just flown. But maybe she was at the end of her life and just didn’t have enough strength?