DaveReading
Don't suffer fools gladly (must try harder!)
- Location
- Reading, obvs
Have you checked to see if they've buit a nest somewhere?
I've had a cursory look and couldn't see anything.
I've been tending to assume that, as there are never any more than 2-3 bees at most, often none, that there isn't a colony of them. Maybe that's not a valid assumption ?