I know that this picture isn't the best but I am wondering if this is the common verity of Bumble bee or not. The rear end of it was hairless and Shiney black. It also seemed larger then most bees I have seen.
Chuck

Hi Chuck,
looks like a carpenter bee to me!

Here is a very simplified comparison of bee variety that might help

http://www.pollinator.org/PDFs...

I was thinking carpenter bee too. They are big like bumble bees but less hairy.