> the bees just didn't leave for reasons
> unknown to me)

Two reasons many bees in a hive may not be flying often enough to be well
enough conditioned to a.) want to go out and b.) return to the original home
if they do take a flight, 1.) are inclement weather and 2.) swarm
preparations.

Spring and fall, when light or no flows are on, if you pick up and move a
hive, you will see bees follow it wherever you go, then enter it.  However,
in summer, when a strong flow is on, they may never even notice you are
moving the hive, and just fly away to return later, puzzled about its
wherabouts.

allen
A Beekeeper's Diary: http://www.honeybeeworld.com/diary/

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