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- April 4, 2011 through April 15, 2011

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.


2010 Annual Report
The 2010 Interagency Annual Wolf (Canis lupus) Report for the NRM DPS will be available March 10, 2011 on-line at .  The Montana Fish, Wildlife and Parks section of the annual wolf report will also available on-line on its websites at  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:

Information about Washington wolves can be viewed at:


On April 9, 2011, the Montana Federal District Court rejected a settlement requested by 10 of the 14 Plaintiffs and the Service involved in ongoing litigation over a Federal District Court’s 2010 decision to reinstate Endangered Species Act protections for gray wolves in the northern Rocky Mountains.  The settlement would have revised the court’s previous remedy and removed ESA protections in Montana and Idaho. 

On April 15, 2011, the 2011 Budget Bill that was signed by the President included the following language: 

“Before the end of the 60-day period beginning on the date of enactment of this division, the Secretary of the Interior shall reissue the final rule published on April 2, 2009 (74 Fed. Reg. 15123 et seq.) without regard to any other provision of statute or regulation that applies to issuance of such rule. Such reissuance (including this section) shall not be subject to judicial review and shall not abrogate or otherwise have any effect on the Order and Judgment issued by the United States District Court for the District of Wyoming in Case Numbers 09-CV-118J and 09-CV-138J on November 18, 2010.”  

This legislation means that the Service’s 2009 science-based and peer reviewed delisting rule will be re-published within 60 days and immune from legal challenge.  This will again return wolf management to the States in Montana, Idaho, eastern Oregon, eastern Washington, and north-central Utah.  The Service will continue to manage wolves in Wyoming until the state has a Service approved regulatory framework for wolf management. 

The 2009 rule determined that the NRM wolf population was biologically recovered and that management by the states, except for Wyoming, would ensure it remained recovered.  The 2009 rule contains mandatory post-delisting monitoring and public reporting requirements, and triggers/safeguards that would cause wolves to be considered for relisting under the Endangered Species Act.

Several packs have been localizing around previous dens, but we have not confirmed any wolves denning as of 4/15/11.

Table 1. Total wolf mortality in Wyoming (outside YNP) from 2003-2011.

Wyoming: In April 2011, wolves in Wyoming killed 2 calves on private property SW of Cody. Two wolves were removed.

On 4/15/11, wolves killed a dog on private property west of Cody.

Table 1. Confirmed livestock depredations and control actions in WY from 2003 - 2011.
* A horse broke its leg and had to be euthanized after being chased by wolves in a pasture on private property.


Nothing to report at this time.


Nothing to report at this time.


Nothing to report at this time.


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 (Helena, MT) (406)449-5225 x204 or Ed_Bangs@FWS.GOV
Mike Jimenez (Jackson) (307)733-7096 or (307)330-5631 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