Why dont you just leave them alone, they wont bother you. A bumble Bee nest
is only a couple of dozen individules and is very important to pollination
of some plants. There are books at your local library with instructions on
how to raise Bumble Bees. They are non agressive, supossedly less agressive
than Honey Bees I have seen my baby Daughter out Playing with them carrying
them around in her hands. Relax and enjoy them they are beautifull.
Jerry Fries