Small Bee, seemed to tend single hole in ground, other holes and Bees adjacent. amzing to see so much pollen on its body
No interactions present.
Jizz looks like an Andrena - but could be wrong. Yes solitary bees are spectacular pollinators, collecting lots of 'dry' pollen. Honey bees and Bumbles paste the pollen to their legs so it' wet and less efficient (for pollination, not feeding a brood) bumbles do have lots of body hairs where dry pollen can be carried around.
Lat/Lng: 51.5, -0.1
OS grid ref: TQ3281