Bumblebees are important pollinators of native and fruiting crops, and Rusty-patched Bumblebees have been decimated by 90% of earlier population counts. They have finally been granted Endangered status in the United States. This article gives you all the details on the bumblebee and its status.
In one of the comments, a reader writes that people in the midwest can create habitat for the bees by ripping out their manicured lawns and creating meadow replacements with water features.
Also published on Medium.