A gray wolf found dead in Larimer County last month had puncture wounds in its skull that suggest it was killed by a mountain lion, an initial necropsy report shows.
The wolf was one of 10 released in December in Summit and Grand counties, a spokesperson for the U.S. Fish and Wildlife Service said in an email last month.
Because wolves are on the federal endangered species list, the wolf carcass was sent to FWS labs for examination. The preliminary report released Tuesday found the cause of death to be “trauma consistent with predation.”
“Predation of gray wolves by mountain lions is not unheard of,” FWS spokesperson Joe Szuszwalak said in an email Tuesday afternoon. “In recent years there are at least three confirmed reports of this occurring in Washington and Oregon.”
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Wolves captured in Oregon were released in Colorado at the direction of voters. Five were placed in southwestern Grand County. Five others were released in Summit County. Since then, Colorado Parks and Wildlife has released maps each month showing the animals ranging into drainages south of Interstate 70 in Eagle County and to the Wyoming border and well into Larimer County in the north.
A CPW spokesman initially declined to say where in Larimer County the dead wolf was found, but noted “before gray wolves have formed packs, a wolf traveling alone in Colorado can be more at risk from other predators like mountain lions.”
The spokesman followed up on Thursday to say the gray yearling male was found on BLM land in northern Larimer County. The wolf’s collar ID was 2303-OR and it weighed about 76 pounds when it was released Dec. 18 in southwestern Grand County.
“CPW is only revealing the identity of this wolf because it was alone, and is now deceased. The agency has determined that revealing this wolf’s identity is unlikely to provide information on the location of other wolves,” the spokesman said in an email.
Since the release in December, ranchers have reported cattle killed by wolves, including four attributed to a male in Grand County. Stockgrowers in Grand, Summit and Jackson counties have repeatedly requested that CPW kill the wolf. However, CPW director Jeff Davis has said the agency will not remove the animal because tracking collars suggest it has mated.
Killing the male, he said, would put the pups at risk, which would run counter to the objectives of Proposition 114, which directed the state to restore wolves to the Western Slope.The state’s detailed plan suggests the species will be considered recovered when there are about 200 wolves in 25 packs across Colorado.
