Fish and wildlife search for grizzly bear after hunter injured north of Calgary

Alberta Fish and wildlife officers are using drones and thermal imaging technology to try to find a grizzly bear involved in an encounter that left a man with serious injuries north of Calgary. As Jayme Doll reports, investigators believe the mother bear was acting defensively, but she has a history of attacks – including a fatal one a few years ago.

• Recent grizzly bear attack in Alberta linked to fatal incident 3 years ago