What is endangered the honey bee or the bumble bee?

Both the honey bee and the bumble bee populations have been falling in recent years. There are very few wild colonies of honey bee now in most parts of the world because of parasites like the varroa mite. It really only the efforts of beekeepers that are really keeping them going. As for the bumble bees, quite a few species are on the endangered list and a number have become extinct in recent years.