Several bees flying down holes in our garden, some of them red bodied, some of them stripey. Very difficult to take a photo of them!
No interactions present.
I can't see anybody being able to name your bee from the photo. However, you might have one or more of the Halictus (can be large) or lasioglossum (often 10mm or less) species in the garden. Males of a few of the lasioglossum have a red abdomen and yellow on the face. The other more likely option is that you also have the cleptoparasitic Sphecodes bees (several species) which are fairly hairless (for bees) have a black thorax and head and shiny red abdomen. You could try for better photos. Check out the BWARS web site and photo gallery.
Lat/Lng: 51.7355, -1.23727
OS grid ref: SP527043