Casey,
 
        The nest boxes for the bumble bees  should have holes at both
ends opposite to each other. Each hole should be about an inch in
diameter, and should be sealed with strong wire mesh. A fan indoors will
provide suitable ventilation. If things get a little hot or stuffy for
the bees, workers will position themselves at the entrance of the nest
(opening between the nesting and feeding chamber) and starting fanning
vigourously.   The queen should
remain in the colony. If you supply her with
enough honey and pollen she she'll carry on with her usual duties.
When the first worker brood emerges you may continue to feed them in the
colony or move them to a field with plenty of flowers.
 Blueberry is an excellent source of pollen for bumble bees,
Unfortunately, it flowers to early in the season to benefit workers,
except at higher latitudes (e.g. Northern Nova Scotia, Newfoundland).
Vetch, crimson clover and cherry are other important food plants for
bumble bees.
 
Feeding bees in the boxes can be tricky, a sliding plexiglass door makes
nest observation and feeding easy. To reduce the chances of worker bees
getting out, especially if the colony becomes large, place a cardboard
sheet with a 5 inch diameter hole cut into in. Place it over the nest
chamber beneath the plastic door. Slide the door just enough so it covers
most of the circle but leaves a small opening where pollen pellets may be
dropped into the nest.
 
 
 
Good luck with your bumble bees and best wishes
 
 
                                Blair