Wyoming Ecological Services
Mountain-Prairie Region

Federally Listed, Proposed & Candidate Species | Species of Concern | Migratory Birds | All Species By County



Species of Concern


Gray Wolf (Canis lupus)

Wyoming Counties Where Wolf May Occur
Gray Wolf
Photo Credit: FWS


Wyoming Distribution by County

Big Horn County | Fremont County | Hot Springs | Lincoln County | Park County | Sublette County | Teton County


Species Information

In Wyoming, gray wolves (Canis lupus) are no longer included on the Federal List of Endangered and Threatened Wildlife (50 CFR 17.11) and are no longer listed as a non-essential experimental population under the ESA (77 FR 55530; September 10, 2012).  The gray wolf in Wyoming is currently managed by the State under the Wyoming Gray Wolf Management plan.  This management plan strives to maintain a gray wolf population in Wyoming of at least 150 individual wolves and 15 breeding pairs (at least 100 individuals and 10 breeding pairs outside of Yellowstone National Park and the Wind River Indian Reservation). 

Section 4(g)(1) of the ESA requires the Service to monitor for at least 5 years, in cooperation with the States, the status of all recovered species that have subsequently been removed from the Federal List of Endangered and Threatened Wildlife.  The primary goal of post delisting monitoring is to ensure that the status of the recovered species does not deteriorate.  If an unanticipated decline is detected, measures would be taken to halt the decline to avoid the need to relist the species as threatened or endangered.  

Although gray wolves in Wyoming are no longer listed under the ESA, the Service encourages project proponents to consider their project’s impacts to gray wolves and their habitat.  Gray wolves follow the seasonal movements of big game populations and may occur in large ungulate migration, wintering, or parturition areas.  While some project activities can impact gray wolves directly, changes to big game population numbers or herd movements can also impact the distribution, abundance, and survival of gray wolves.  Consequently, project planning should consider impacts to big game populations, including wintering grounds and migration corridors.  We recommend you contact the Wyoming Game and Fish Department for additional information.

Additional Information

Region 6 Gray Wolf Information

Last updated: June 13, 2014