>When observing b e es in a winter cluster one sees wing movement
although not like fanning the hive

Hi Bob,

The obvious question (at least obvious to me),  is 
how would a wintering cluster of bees distribute
the heat effectively throughout the cluster? 
 
...Surely, some areas of the cluster would 
be cooler or warmer than others,  so a mode 
to distribute heat would be required. I wonder
if 'very slight movement' of wings help to distribute
warm air more effectively throughout the cluster?

Joe

 

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