Chris wrote: "The pictures of your bees' remodeling are amazing. What would
drive them to do that?"

Probably old, brittle comb that has not had brood in yet. A colony given a
ox of that on four bars at one side decided not to use it and built on the
empty bars instead, But now they are running out of space with their new
white coms and I can see through the window that the demolition team has
moved on to the last year's comb.

(I'll publish pictures of uniting a chimney swarm with them in due course.)
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David Heaf North-West Wales, UK
Warré & 'National' hives at 30 m over mean sea level
Warré beekeeping English web portal:
http://warre.biobees.com/index.html
***OR***
http://www.heaf.freeuk.com/warre/
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