Bumble bee

Bumble bee

Observation - Bumble bee - UK and Ireland. Description: Observed this bumble bee for several minutes as it carried out gymnastics on the vertical face of a fence post. Does anyone know what it may have been doing? The fence was between a mature broadleaved plantation and rough grassland.

Observed this bumble bee for several minutes as it carried out gymnastics on the vertical face of a fence post. Does anyone know what it may have been doing?
The fence was between a mature broadleaved plantation and rough grassland.