Woodpeckers appear to hammer their heads against wooden objects such as tree trunks for a reason -
presumably to reach juicy grubs hidden away.

Presumably they do not waste energy by boring at random - but use some sense to locate the best
attack point!

After watching blackbirds/ thrushes on grass land (lawn) listening for worms and grubs - I again
presume that woodpeckers do the same.

Therefore - would it be more likely that the said birds heard that the bees were in the "tree trunk"
- building.

Jerry, I suggest that you wrap the said building in chicken wire to stop offending birds!

Ever wishing to help.
Peter

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