Over the last month, two of Colorado’s latest gray wolf transplants were killed after crossing the border into Wyoming.

In 1976, the Mexican gray wolf was declared an endangered species by the U.S. Fish and Wildlife Service. Once driven to the ...

Colorado Parks and Wildlife biologists confirmed that the death of a female gray wolf occurred in Rocky Mountain National ...

Colorado Parks and Wildlife said the death of a female gray wolf last weekend in Rocky Mountain National Park is currently ...

After being delayed a day, Colorado Parks and Wildlife published the April wolf activity map that shows extensive travel from ...

A third wolf captured in British Columbia and reintroduced into Colorado has been found dead, this time in Rocky Mountain ...

A collared gray wolf released in Colorado in January as part of the state’s historic reintroduction effort died in Rocky ...

A second gray wolf introduced to Colorado has died during April, this time inside the boundaries of Rocky Mountain National ...

People looking on Colorado Parks and Wildlife’s website for its monthly map updating where collared gray wolves have recently been didn’t find the map on its normal release date as ...

A gray wolf that was brought to Colorado from British Columbia has been shot in Wyoming, marking the second killing of a ...

Neighboring Lassen County also has reported increased gray wolf activity ... managers recently killed a collared wolf that appeared to have crossed into Wyoming and killed several sheep.