'Broomstick bees'

'Broomstick bees'

Observation - 'Broomstick bees' - UK and Ireland. Description: We observed bees selecting pieces of dry grass and moving them up the slope where we assumed they were constructing a nest. I understand the photo isn't ideal, how any suggestions would be appreciated.

We observed bees selecting pieces of dry grass and moving them up the slope where we assumed they were constructing a nest.

I understand the photo isn't ideal, how any suggestions would be appreciated.