Hi folks,
 
After a couple of decades of keeping bees, I'm proud to say that I still
have questions.
 
I just got a call from a man who doesn't have bees but has a beekeeping
neighbor.  His humming bird feeders are covered up with bees.  I also
have humming bird feeders and often have 40+ colonies of bees a hundred
meters or so away.  I have never seen bees at my feeders.
 
Questions: Do some feeders attract bees more than others?
Is there some way to discourage bees from going to humming bird feeders?
What can I suggest to this man?
 
Thanks in advance for your responses.
Ed Levi