Colo. will file lawsuit over Gunnison grouse protected status

Photo: Gunnison sage grouse
A front view of the threatened Gunnison sage grouse.

Colorado officials plan a lawsuit challenging the federal government's decision to protect the Gunnison sage grouse, arguing it wasn't warranted.

John Swartout, an adviser to Gov. John Hickenlooper, said Friday state attorneys are reviewing the decision and will file a notice of intent to sue, a required first step.