American bumblebees disappeared from 8 states, face extinction

The truth about bees

First Bumblebee Declared Endangered in U.S.

News: Bumblebees Disappear From 8 States, Extinction Fears Loom - A-Z Animals

Honeybees Aren't Endangered in the US?

Report: The American Bumblebee Has Disappeared Entirely From Eight States - RELEVANT

Bumble Bees of North America

The American bumblebee is on the decline

Will The Franklin's Bumblebee Ever Be Seen Again? - OPB

Mason Bee Edu Educator Modules - BEE DECLINE - WHAT DO WE KNOW?

A worthy conservation target? Revising the status of the rarest bumblebee of Europe - Ghisbain - 2021 - Insect Conservation and Diversity - Wiley Online Library

Wisconsin Bumblebee Observers

Climate change: Bumblebees face extinction as population drops by 46%