When this happens I have to fight the need to go and check all the hives in my apiary to make sure they’re not swarming. Once the sycamore starts flowering they go crazy for it and the volume of their buzzing around the apiary and veggie plot, both of which have quite a bit of sycamore in the hedges, is astonishing.
(Just noticed that there appears to be some garlic mustard in flower there too. I’ll have to check that out at some point.)