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 REPORT – Aug. 29, 2011 through Sept. 9, 2011

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

2010 Annual Report
The 2010 Interagency Annual Wolf (Canis lupus) Report for the NRM DPS will be available March 10, 2011 on-line at http://westerngraywolf.fws.gov .  The Montana Fish, Wildlife and Parks section of the annual wolf report will also available on-line on its websites at http://fwp.mt.gov/fishAndWildlife/management/wolf/default.html.  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. 

Information about Oregon wolves can be viewed at: 
www.dfw.state.or.us/wolves

Information about Washington wolves can be viewed at: http://wdfw.wa.gov/conservation/gray_wolf/

 

The USFWS and Wyoming have reached an agreement in principle which will enable the Service to proceed with a proposed delisting rule for wolves in Wyoming. The WGFD has modified their wolf management plan to reflect the agreed upon principles and will present the new plan to the Wyoming Game and Fish Commission on September 14th.

MONITORING
Wyoming (outside Yellowstone National Park)
As of Sept 9th, at least 20 packs are confirmed or suspected to have produced pups in 2011 in the following areas:
West of Cody/Meeteetse/Sunlight Basin: Absaroka, Beartooth, Greybull River, Gooseberry, Hoodoo, Pahaska, and South Fork packs.
Dubois/Togwotee Pass: East Fork and Lava Mtn packs.
Pinedale/South: Green River, New Fork, and Prospect packs.
Jackson/West: Pinnacle Peak, Lower Gros Ventre, Upper Gros Ventre, Phantom Springs, Huckleberry, Pacific Creek, Chagrin, and Dog Creek packs.         
Table 1. Total wolf mortality in Wyoming (outside YNP) from 2003-2011.

Cause of Mortality 2003 2004 2005 2006 2007 2008 2009 2010 2011
Depredation Control 18 29 41 44 63 46 31 40 25
Natural 3 0 3 1 2 3 2 2 2
Under Investigation 5 1 5 8 5 8 0 8 1
Unknown 1 0 0 1 2 8 7 4 4
Other 0 6 2 5 3 14 0 4 3
Total 27 36 51 59 75 79 40 58 35


Yellowstone National Park
Biologists have confirmed 14 packs including 7packs that have produced pups. The home ranges of at least 2 packs overlap YNP and the State of Montana. These numbers are only preliminary counts and will undoubtedly change by the end of the year.

CONTROL
Wyoming:

On 9/2/11, wolves killed a calf on a public grazing allotment near Togwotee Pass. Control actions were completed on 9/5/11 after 2 wolves were radiocollared and 4 wolves were removed from the Lava Mtn. pack.

On 9/2/11, Wyoming Wildlife Services confirmed one calf was killed by wolves on a public grazing allotment near the Prospect Mtns. Control actions were completed on 9/7/11 after 1 adult wolf was radiocollared on 9/4/11and 2 wolves were removed.

On 9/2/11, Wyoming Wildlife Services confirmed 2 lambs were killed by wolves on a public grazing allotment in the Greys River drainage. Two wolves have been reported in the area. Control actions are ongoing to remove both wolves.

On 9/6/11, WGFD and Wildlife Services confirmed a yearling heifer killed by wolves on a public grazing allotment south of Pinedale. Control actions are ongoing.

On 9/9/11, WGFD and Wildlife Services confirmed a 3-year old heifer killed by wolves on a public grazing allotment in the Gros Ventre River drainage. Wildlife Services also confirmed that wolves injured a calf on private property west of Cody.

Confirmed wolf depredations and subsequent control actions from 2003-2011 are reported in Table 2.

Table 2. Confirmed livestock depredations and control actions in WY from 2003 - 2011.

Depredations   2003 2004 2005 2006 2007 2008 2009 2010 2011
Cattle   34 75 54 123 55 41 20 26 26
Sheep   7 18 27 38 16 26 195 33 30
Dogs   0 2 1 1 2 0 7 0 1
Goats   0 10 0 0 0 0 0 0 0
Horses   2 0 1 0 1 0 0 1  0*
Wolves Controlled   18 29 41 44 63 46 31 40 25
* A horse broke its leg and had to be euthanized after being chased by wolves in a pasture on private property.

 RESEARCH
Nothing to report at this time.

 LAW ENFORCEMENT AND RELATED ACTIVITIES   
Nothing to report at this time.

 OUTREACH AND EDUCATION
Nothing to report at this time.

 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:
Mike Jimenez (Jackson) (307)330-5631 or (307)733-7096 or Mike_Jimenez@FWS.GOV
Scott Becker (Cody) (307)527-8916 or (307)699-3411 or Scott_Becker@FWS.GOV

Last updated: November 8, 2012