Drone causes elk stampede

Add this to the long list of problems caused by buzzing drones: Frightening 1,500 elk into stampeding at a time of year when too much stress can be deadly for the animals.

Typically the National Elk Refuge provides a winter haven for elk.

But on Monday, David A. Smart, 45, of Washington, D.C., got a $280 ticket for allegedly launching a drone from a highway pullout and flying it over hundreds of elk resting there.