Colorado Parks and Wildlife said a depredation incident is under investigation after an uncollared wolf killed a cow on a ranch in Jackson County last week.Authorities said the cow was attacked by an unknown wolf on Feb.

It is the first time Colorado Parks and Wildlife has confirmed a livestock depredation outside of the 29 it says live in the state.

Colorado Parks and Wildlife believes the wolf is not collared and is not part of the effort to reintroduce wolves in the state.