At least 2 dozen holes on sandy pond-side bank.
Lots of bees busy excavating. South facing.
No interactions present.
Thanks, Syrphus - I had just come to the same conclusion having seen comments on Other obs.
A clarkella females also have distinctive golden pollen baskets - they are black in A. fulva.
Lat/Lng: 51.2978, 1.0641
OS grid ref: TR137598