Bumble Bees of Alaska: A Field Guide (U.S. National Park Service)
Top Ten Things You Didn't Know about Bumble Bees - Earth Rangers
Bumblebees of Helena: getting to know our fuzzy neighbors
i.ytimg.com/vi/vJmPMIGjUgg/maxresdefault.jpg
Bumblebees: Essential Pollinators for Your Garden
Bumble Bees - Prevention, Control & Facts About Bees
Bumble Bees in the Garden - The Real Dirt Blog - ANR Blogs
Bumble Bees
Bumble Bees - Prevention, Control & Facts About Bees
Bumblebee nests - Bumblebee Conservation Trust
Bee Spotlight: Yellow-Faced Bumblebee — Bee & Bloom