Brown-belted Bumble Bee in a nest. (Photo: Kent McFarland / Flickr.)
Bumble Bees of Alaska: A Field Guide (U.S. National Park Service)
Emergency Bumble Bee Nest Relocation! NC State Extension, 48% OFF
Where Do Pollinators Go in the Winter?
Join Queen Quest to search for overwintering bumble bees
How to help revive a cold or wet bee • Save Bees
Bumble Bees and Solitary Bees & Wasps in Urban Landscapes
Bumble bees hibernate, honey bees do not - Honey Bee Suite
The Humble Bumble Bee - Bug Squad - ANR Blogs
Life Cycle and Biology – Bumble Bees of Wisconsin – UW–Madison
Bombus perplexus…And other bee befuddlement
Successfully overwintered my first two hives through a Minnesota
How To Support Solitary Bees – Mother Earth News
UNL Bee Lab
Signs of Carpenter Bees Around Your Home