The agency didn’t say whether the trap had been set by a homeowner, but the doe was spotted for several days with the trap over her muzzle in Evergreen, about a 30-mile drive southwest from Denver.

A police officer in West Bridgewater, Mass., brought a stricken dog back to life by performing mouth-to-mouth resuscitation on her furry muzzle after she was hit by a car, the officer said.