Threatened Colorado
North American wolverine in alpine terrain, showing the stocky dark brown body, pale facial markings, and bushy tail characteristic of the largest terrestrial mustelid

Featured species

North American Wolverine

Gulo gulo luscus

Federal: Threatened Mammal

Wolverines haven't bred in Colorado in over a century. A 2026 state plan would bring back up to 45 — once federal approval comes.

Read the full story

Photo: Blue Mountains – Oregon Conservation Strategy — Public Domain

Colorado's Threatened & Endangered Species

Profiles of every federally threatened, endangered, and proposed species in Colorado — habitat, threats, and recovery status.

41

Species profiled

8

Federally endangered

14

Federally threatened

13

Critical habitat designated

Also at risk

Browse all 41 species →
Reintroduced Featured
US Endangered CO Endangered

Black-footed Ferret

Mustela nigripes

mammal shortgrass prairie
Featured
US Endangered CO Endangered

Bonytail Chub

Gila elegans

fish Colorado River mainstem

Our purpose

Colorado's threatened and endangered species deserve more than agency reports and status tables. They deserve to be understood.

Threatened Colorado is a free, ad-free resource built by two Colorado natives on a mission to raise awareness and support conservation of the state's threatened and endangered wildlife. No commercial motive, no funder with an agenda. Just the science, the stories, and the stakes.

Explore and get involved

Species index

Browse all 41 profiled species by class, status, or habitat.

Habitats

Explore Colorado's 8 ecoregions and the species that depend on each.

Conservation

Active recovery programs, agencies, and ways to get involved.

Report a sighting

Document a threatened species encounter with Colorado Parks and Wildlife.