Midwest Native Bee Alliance
Species Illustrations - PNW Bumble Bee Atlas
Western Bumble Bee – Oregon Conservation Strategy
Midwest bumble bees declined with more farmed land, less diverse crops since 1870
Maryland Biodiversity Project - Common Eastern Bumble Bee (Bombus impatiens)
A daily low price storeBumble Bee Conservation, bumblebee vibrating
press release – VCE Offers Free Bumble Bee Guide
Maryland Biodiversity Project - Brown-belted Bumble Bee (Bombus griseocollis)
Western Bumble Bee Identification for Bumble Bee Atlas Volunteers
Bumble Bee Atlas U.S. Fish & Wildlife Service