> Lately, in probably 3 or so fields I have run into one very specific type 
> of
> bee. This bee has a light grey body and a bright yellow head. It is 
> probably
> about 2cm long or so and 3/4 cm wide.

It sounds like a drone Carpenter Bee, the color is wrong.  You may have a 
different speices than I have here.  If so, they are harmless.  He is trying 
to drive you from his mating area, but does not really have the means to do 
it.  Here is a stupid trick that will amaze the kids.  Point a stick at it 
and it will hover around the tip, move the stick and the bee will follow it. 
Tell the kids you have a trained bee.  Works every time.

Jim Hock
Wethersfield, CT 

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