Yesterday was bright and sunny, and hundreds of my bees were rolling in wood
chips left from cutting firewood with a chainsaw.  Some of the chips were
wet, but they were rolling only in the dry ones, rolling as one would expect
of a dog or a horse.  Since they have been consuming copious pollen
sustitute, I though a colony might have run out, so put a tray of dry pollen
substitute amongst the chips.  The bees ignored the pollen substitute and
continued rolling in the chips.  They did not seem to carry anything away
from the pile of chips.  What were my bees doing?

Bill Morong