Want more information about bumble bees? Here are list of guides and resources that can help.
Bumble bee identification:
Bumble Bees of North America: An Identification Guide (2014) by Williams, Thorp, Richardson, and Colla; Princeton University Press
Purchase a copy of the book online
Bumble bee ecology, biology, and conservation:
Bumblebees: Behavior, Ecology, and Conservation (2009) by Goulson; Oxford University Press
Access Goulson's book online
Conserving Bumble Bees: Guidelines for Creating and Managing Habitat for America's Declining Pollinators (2012) by Hatfield, Jepsen, Mader, Black, and Shepard; Xerces Society
Access the Bumble Bee Conservation Guide online
Alford, D.V., 1978. The Life of the Bumblebee
Access Alford's book online
Heinrich, B., 1979. Bumblebee Economics. Harvard University Press
Access Heinrich's book online
For more information on plant identification, check out: