One of the most common North American bumble bee species is

Study reveals striking decline of Vermont's bumble bees

Western Bumble Bee and Native Pollinator Research

Bumble Bees of North America

American Bumble Bee, Museum of Natural History

One of the most common North American bumble bee species is actually two species — News — Department of Entomology

One species a day: Common eastern bumblebee

Getting to Know Our Native Northwest Bees

Pin de ALEXANDRA BARON en Bombus lapidarius en 2023

Oak Spring Garden Foundation - Four At-Risk North American Bumble Bee Species

Bombus perplexus…And other bee befuddlement, by U.S.Fish&Wildlife Alaska

Bumble Bees of North America

Bumblebee, Description, Species, Life Cycle, & Facts

Bumble Bee Pollination in Tomato Greenhouses

The unexpected links between declining bumble bee species - Wildlife Preservation Canada

Bumble Bees of North America: An Identification Guide (Princeton Field Guides, 89): Williams, Paul H., Thorp, Robbin W., Richardson, Leif L., Colla, Sheila R.: 9780691152226: : Books