EXT XEN.0011 Midwest Bumble Bee Identification, Ecology, and
Yellow-banded Bumble Bee – Bumble Bees of Wisconsin – UW–Madison
Brown-belted Bumble Bee - Montana Field Guide
PDF) Decline of bumble bee (Bombus) in the North American Midwest
Minnesota Seasons - yellow-banded bumble bee
PDF) Decline of bumble bee (Bombus) in the North American Midwest
Bumble Bee Identification - TPWD
Species Illustrations - PNW Bumble Bee Atlas
Western bumble bee Washington Department of Fish & Wildlife
Party Your Pants Off Funny Birthday Card, Birthday Card
Maryland Biodiversity Project - Brown-belted Bumble Bee (Bombus griseocollis)
Pocket Guide to Identifying the Western Bumble Bee