Wildlife officials now are monitoring four potential wolf dens and said Monday that it was “likely there are an unknown ...

The latest confirmed death means at least five of the 15 wolves relocated from Canada in January have now died.

It’s been a week of bad news for supporters of Colorado’s voter-mandated efforts to reintroduce gray wolves. Colorado Parks ...

The cause of death will follow a necropsy by the U.S. Fish and Wildlife Service. The male was originally from British ...

Another gray wolf that was brought to Colorado as part of the state's reintroduction program has died, officials said on ...

Another of Colorado’s reintroduced wolves has died in the northwest corner of the state. Colorado Parks and Wildlife ...

Five of 15 wolves captured in British Columbia and released in Colorado in January have died in less than six months.

Colorado Parks and Wildlife reports a grey wolf's death, sparking an investigation. Efforts continue to manage the growing ...

Another wolf that was reintroduced to Colorado has died, and wildlife officials are continuing to monitor several potential ...

A gray wolf was found dead in northwest Colorado over Memorial Day weekend, according to Colorado Parks and Wildlife ...