Idaho Fish and Game says the bird was recovered alive but later euthanized due to its injuries. Officials found several steel BBs in the eagle's body.

The eagle was found deceased on Dec. 8 near Mt. Hope, south of Huntsville, with shotgun pellets lodged in its body. The U.S. Fish and Wildlife Service, which is leading the investigation, set the reward at $2,500. But this week the Center for Biological Diversity chipped in $12,500 to boost the reward to $15,000.

Authorities are seeking information about a bald eagle that was shot in the Idaho Panhandle sometime between Dec. 24 and 26.Idaho Fish and Game says the eagle