Gray Wolves in the Northern Rocky Mountains
Mountain-Prairie Region

Wyoming Gray Wolf Recovery Status Report

From:               USFWS Wyoming Wolf Recovery Project Leader, Jackson, WY

Subject:            Status of Gray Wolf Management in Wyoming and the NRM

WYOMING WOLF WEEKLY- June 12 through July 16, 2010

Web Address – USFWS reports (past weekly and annual reports) can be viewed at .   All weekly and annual reports are government property and can be used for any purpose.  Please distribute as you see fit.

2009 Annual Report
The 2009 Interagency Annual Wolf (Canis lupus) Report for the NRM DPS in 2009 can be viewed on-line at .  The Idaho and Montana state sections of the annual wolf report are also available on-line at the websites for Montana Fish, Wildlife and Parks and Idaho Department of Fish and Game  The annual wolf report is composed of five Sections: 1) Montana; 2) Wyoming; 3) Idaho; 4) USFWS overview of dispersal, funding, litigation, and relevant publications; and 5) Tables and Figures of wolf population statistics and wolf depredations. 
Litigation Status
Wyoming: Oral arguments were heard in federal court in Cheyenne, WY on January 29 to address the state of Wyoming’s request that the USFWS accept the Wyoming Wolf Management Plan. A decision from Judge Allen Johnson is pending.

Northern Rocky Mountains: Oral arguments were heard in federal court in Missoula, MT. on June 15. The court will address the Service’s approach of conferring ESA protections to a “significant portion of the range” of a species, as opposed to designating the entire species as a threatened or endangered species. Judge Malloy said he would issue a decision as soon as possible.


Wyoming: At least 14 packs have denned this spring in Wyoming (outside YNP), including: Absaroka, Beartooth, Chagrin River, East Fork, Elk Fork Creek, Greybull River, Green River, Hoodoo, Huckleberry, Pacific Creek, Phantom Springs, Pinnacle Peak, Sunlight, and Owl Creek. 

Figure 1. Wolf population growth in Wyoming (outside YNP) 2000-2009.                                1

Table 1. Total wolf mortality in Wyoming (outside YNP) from 2003-2010.


Oregon: Images captured July 3, 2010 on a motion-triggered trail camera indicated the Imnaha Pack had at least four pups this year and mark the first visual confirmation of wolf pups in Oregon for 2010. While the alpha female was seen in some of the images taken, the alpha male was not. The alpha male’s GPS collar has not been detected since May 31 and his fate and that of the collar remains unknown. ODFW and Oregon State Police continue to investigate the whereabouts of this wolf. A full description of events concerning wolves in Oregon can be viewed at:


Wyoming: We continue to manage wolf population growth and wolf distribution to minimize chronic loss of livestock from wolves and promote wolf conservation by maintaining the Wyoming wolf population (outside YNP) well above recovery objectives.

On 7/15/10, Wyoming Wildlife Services confirmed that 1-2 wolves killed a total of 14 lambs and 1 ewe on public land in the Big Horn Mountains, approx. 15 miles south of the Wyoming/Montana state border. Four additional lambs were injured and are not expected to survive. The depredations first occurred on 7/12/10, with additional depredations occurring on 7/13/10. The USFWS requested Wildlife Services to remove the offending wolves. Last year, 3 wolves killed >113 sheep in the Big Horn Mountains before the depredating wolves could be controlled.
Table 2. Confirmed livestock depredations and control actions in WY from 2003 - 2010.


*One foal was killed by wolves (recorded as confirmed), 2 horses were chased by wolves and injured when they were run through a fence (recorded as 1 confirmed and 1 probable), and 1 horse was chased by wolves and broke its leg when it was run over a cattle guard (recorded as probable). All 3 injured horses had to be euthanized.

Figure 2. Annual wolf population size and number of cattle and sheep losses per year in Wyoming: 2000-2009.


Figure 3. Annual number of wolf packs in Wyoming and the number of wolf packs that are involved in at least 1 livestock depredation per given year.



As of 7/16/10, wolves killed 8 calves on private property and killed 2 steers and 24 sheep of public land in Wyoming.


Figure 4. Land status where confirmed wolf depredations occurred in Wyoming in 2009.

      All confirmed wolf        
     depredations (n=215)         Cattle (n=20)               Sheep (n=195)                                                                                                                            
1   11


Nothing to report at this time.

Law Enforcement and Related Activities   
Nothing to report at this time.

Outreach and Education

Mexican Wolf Recovery Program - Two job announcements:
1) Field coordinator in the Mexican wolf recovery program.

Anyone can find the two announcements (one public DEU; the other for government employees) via the search engine at USA jobs during June. They can also try the following link:

View the position advertisement summarizing additional information.


2) Wolf biologist to work on the Mexican Wolf Program at the New Mexico Dept. of Game and Fish.
The position will supplement an existing Department wolf biologist on the same program. We’re looking for someone that has a little experience with large carnivores and who can relate to the local stockmen.

Further Information
To request an investigation of livestock injured or killed by wolves, please contact the U.S. Dept. of Agriculture Wildlife Services at (307)261-5336.

For additional information, please contact:
Ed Bangs (406)449-5225 x204 or Ed_Bangs@FWS.GOV
Mike Jimenez (307)733-7096 or (307)330-5631 or  Mike_Jimenez@FWS.GOV

Last updated: November 8, 2012