The message
from Kay contains these words:

So that might suggest masonry bees. There are various horror stories on
the web of considerable tunnelling damage done by them, so perhaps we
ought not to encourage them back next year. Anyone know what they are
likely to do over winter? Can we re-point and keep them out, or will
they be hibernating inside?

I think the young queens (Ooooo, ducky!) will fly off and find somewhere
to hibernate, the old queen will die (Oooo, the drama, dear!) and that
will be the end of that nest, but you might hope for Mary Fisher to
happen by, she'd probably know - or have the books to tell you.

--
Rusty
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