Hornet Mimic Hover Fly

I did an hour and a half in the garden first thing, before the rain was due. I cleared a patch of weeds that was annoying me (much easier after the recent rain) and then focused on cutting back where needed, so I could half fill my garden bin. It was good to see the pond beginning to look like it was filling up. I looked for a blip whilst I was out and saw what I feared initially was a hornet as it was so large, but it turned out to be a hornet mimic hover fly. My Picture Insect app tells me it 'can hover motionless in the air for remarkably long periods, thanks to its extraordinarily efficient wing muscles and rapid wing-beat frequency.' Then after watching a couple of Sunday political news programmes, I did some sorting and tidying and also watched a film.