"We’ve never seen a year like this” – unprecedented third elk attack in a week sends another person to the hospital

Cow elk grazing in field.

Officials have described three elk attacks in a single week in one Colorado town as "unprecedented" and called for extra caution among residents and visitors this calving season.

Early Friday morning, a woman was walking her dog on leash in downtown Estes Park, just outside Rocky Mountain National Park, when she startled a cow elk with its calf 20 yards away.