Hummingbird moth

I am not a lover of moths, love butterflies, but not moths. I don’t like the way they flutter around the light in a state of craziness. However , there are these delicate little ‘hummingbird moths’ that dance around the lavender bushes, nuzzling the flowers with their rather long proboscis, I’m assuming to get pollen. They seem to live perfectly comfortably along side the bees, you’d think one would get the hump with the other for nicking his pollen. But obviously enough to go round, or are they doing something else?