Busy Bees

We have this strange old magnolia tree in the back garden - it has big waxy flowers that last one day before they collapse messily onto the ground or into the pool (it's a Magnolia Delavayi if you are interested in that sort of thing). I had fun watching these two bees hard at work this evening as the flower began to crumble around them - from time to time a heap of petals (??) would slide down all at once, taking the bees with it - but they persisted.
All a bit blurry and dark, my telephoto is not ideal for this!, A couple more from the sequence in the extras.