garden. I wasn't to be disappointed as I found this hover:
That middle bar makes it very distinctive, it's Dasysyrphus tricinctus.
It's not rare, being widely distributed in the UK but from what I can gather it's not
especially common either.
I did take some HD video, not brilliant, but not bad!
That is my 26th species of hoverfly, nearly all of which I've found in the garden.