Mexican Wolf
Southwest Region Ecological Services
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Mexican wolf stands underneath tree limbs. Credit: John Bradley, USFWS.
Mexican Wolf Recovery    

The Mexican wolf is the rarest subspecies of gray wolf in North America. Once common throughout portions of the southwestern United States, the Mexican wolf was all but eliminated from the wild by the 1970s. In 1977, the U.S. Fish and Wildlife Service initiated efforts to conserve the species. In 1998, Mexican wolves were released to the wild for the first time in the Blue Range Wolf Recovery Area within the Mexican Wolf Experimental Population Area. Missing from the landscape for more than 30 years, the howl of the Mexican wolf can once again be heard in the mountains of the southwestern United States.


Recent Wolf Stories

Mexican wolf pup, fp1578 was safely captured and fitted with a GPS radio collar. Credit: USFWS Interagency Field Team.
Mexican wolf pup, fp1578 was safely captured and fitted with a GPS radio collar. Credit: USFWS Interagency Field Team.
Cross Fostered Pup Collared In New Mexico

October 2017
This month, Mexican wolf pup fp1578 was safely captured, fitted with a GPS radio collar, and released back into the wild to join her pack.  The unique part of this, somewhat typical capture and release, is fp1578 was not born in a wild den. She was born in captivity at the Brookfield Zoo outside Chicago, Illinois. 

On April 22, 2017, a Mexican wolf at the Brookfield Zoo gave birth to a litter of five pups. Subsequently, the U.S. Fish and Wildlife Service Mexican Wolf Recovery Team proposed cross-fostering, which is the transfer of young pups from one litter to another litter of similar age so that each receiving pack raises the pups as their own. In this particular circumstance, the objective was to place two pups from Brookfield Zoo’s litter with a wild pack and place two wild-born pups in the zoo’s pack.

In early May of 2017, fp1578 and her sibling mp1579, were successfully transferred from the Brookfield Zoo and placed in the den of the San Mateo wolf pack.

“The support and partnership the U.S. Fish and Wildlife Service has with the Brookfield Zoo is tremendous. It plays a critical role in the success of Mexican wolf recovery,” said Amy Lueders, the U.S. Fish and Wildlife Service’s (Service) Southwest Regional Director. “The survival of these pups increases the chances of improving the genetic health in the wild population.”


News Releases for Mexican Wolf

Captive-born Mexican Wolf Pups Doing Well Following Successful Introductions into Wild Wolf Litters

2017 U.S. Mexican Wolf Population Survey Completed

Service and Partners Mark 20th Anniversary of Release of Mexican Wolves in Wild

Flight Operations Begin for Mexican Wolf Population Survey


For additional USFWS Mexican Wolf News Releases visit the Newsroom and search for Mexican wolf.

Map of recent wolf locations
Recent Wolf Locations (ArcGIS)
Mexican wolf experimental population map
Download copy of Mexican Wolf Experimental Population Map. USFWS.
Recovery Programs
Northern Rocky Mountain Wolf Recovery Program
Red Wolf Recovery Program
Western Great Lakes Wolf Recovery Program

Contact the Mexican Wolf Program to report wolf sightings or suspected livestock depredations

Call toll free at 1-888-459-9653 or 928-339-4329

To report incidents of take or harassment of wolves

Call the Arizona Game and Fish Department's 24-hour dispatch Operation Game Thief at
Last updated: July 3, 2018