Buzzing in circles round and round the heart of the Cistus flower, tongue out.
Hard to check from pic if it really has a white tail as B. hypnorum should - there's a hint of it in one.
Bombus hypnorum Linnaeus, 1758, Søborg, Denmark, 20 June 2015
They have taken over a bird box
Knackered after a long day collecting
Approaching nest hole.