Threatened, Endangered and Sensitive Species

Four small owls sit in a line on a fallen tree trunk.
Boreal owl fledglings

The Threatened, Endangered and Sensitive (TES) Species Program is the Forest Service’s dedicated initiative to conserve and recover plant and animal species that need special management attention, and depend on National Forest and Grassland habitats.

Photo of a an orangish butterfly sitting on a pink flower.
Pawnee montane skipper, Photo: Craig Hansen, USFWS

There are several factors that can lead to endangerment and extinction of species. The single-most important one—and the one the Forest Service has the greatest influence over—is the alteration and loss of habitats. As manager of over 192 million acres of public lands and species habitats, the Forest Service and its partners play a key role in the conservation and recovery of at-risk species and maintenance of native biological diversity in the United States.

In addition to contributing to the recovery of threatened and endangered species, the Forest Service also manages to conserve habitat for over 3,100 “sensitive” species—species that need special management to maintain and improve their status on National Forests and Grasslands, and prevent a need for listing under the Endangered Species Act. “Keeping all the parts” is a central tenet of ecosystem management and is a core principle that guides the Forest Service’s management of the National Forests and Grasslands.


Threatened and Endangered Lists

2023 Threatened and endangered species lists will be available soon.

Sensitive Species Lists

2011 Sensitive Species List, Fish

2011 Sensitive Species List, Wildlife

2011 Sensitive Plant Species List, Plants in Montana

2011 Sensitive Plant Species List, Plants in Idaho

2011 Sensitive Plant Species List, Plants in North and South Dakota

Sensitive Species Lists formatted for easier viewing and reading

2011 Sensitive Species List, Fish

2011 Sensitive Species List, Wildlife

2011 Sensitive Plant Species List, Plants in Montana

2011 Sensitive Plant Species List, Plants in Idaho

2011 Sensitive Species List, Plants in North and South Dakota