FORT COLLINS, Colo. (AP) — Colorado Parks and Wildlife is working to confirm two possible gray wolf sightings in northern Colorado.

The Coloradoan reports Tuesday that someone sent the agency a photo that may show a radio-collared wolf near Walden in Jackson County.

Biologists are trying to confirm another recent sighting just to the south in Grand County.

Gray wolves were native to Colorado but were hunted to near extinction by the 1940s.

CPW spokeswoman Rebecca Ferrell says the Jackson County animal may have wandered from nearby Wyoming, one of several states where the wolf has been reintroduced.

The last confirmed Colorado wolf sightings were near Walden in 2015.

In all, there are about 6,000 gray wolves in the Northern Rockies, Pacific Northwest and Western Great Lakes.

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