Conserving species and Idaho's lifestyle.

Threatened, Endangered, and Candidate Species

Endangered- Any species in danger of extinction throughout all or a significant portion of its range.
Threatened- Any species likely to be classified as Endangered within the foreseeable future throughout all or a significant portion of its range.
Candidate- Any species that is undergoing a review process for possible listing as endangered or threatened.
Proposed Threatened- A species undergoing a review process to determine if it will be listed for protection under the ESA.
Designated Critical Habitat- A geographic area(s) that contains essential features for the conservation of a species.

Listed Species in Idaho


Canada Lynx (Lynx Canadensis)
Grizzly Bear (Ursus arctos horribilis)
Northern Idaho ground squirrel (Spermophilus brunneus brunneus)
Southern Idaho ground squirrel (Urocitellus endemicus)
Southern Selkirk Mountains woodland caribou (Rangifer tarandus caribou)


Greater sage-grouse (Centrocercus urophasianus)
Yellow-billed cuckoo (Coccyzus americanus)


Bull trout (Salvelinus confluentus)
Chinook Salmon (Oncorhynchus tshawytscha)
Kootenai River white sturgeon (Acipenser transmontanus)
Steelhead trout (Oncorhynchus mykiss)
Sockeye Salmon (Oncorhynchus nerka)


Banbury Springs lanx (Lanx sp.)
Bliss Rapids snail(Taylorconcha serpenticola)
Bruneau hot springsnail (Pyrgulopsis bruneauensis)
Snake River physa snail (Haitia (Physa) natricina)


Goose Creek milkvetch (Astragalus anserinus)
MacFarlane’s four-o’clock (Mirabilis macfarlanei)
Slickspot peppergrass (Lepidium papilliferum)
Spalding’s catchfly (Silene spaldingii)
Ute ladies’- tresses (Spiranthes diluvialis)
Water howellia (Howellia aquatilis)
Whitebark Pine (Pinus albicaulis)

304 N. 8th Street, Room 149
Boise, ID 83702
Phone: 208.334.2189
Fax: 208.334.2172
Staff Contacts