Travis White, Utah Department of Transportation, Highway Incident Management Team, holds a their drone at a drone demo Monday, May 20, 2019, in Park City, Utah. In Utah, drones are hovering near avalanches to watch roaring snow. In North Carolina, they're searching for the nests of endangered birds. In Kansas, they could soon be identifying sick cows through heat signatures. Public transportation agencies are using drones in nearly every state, according to a new survey released on Monday, May 20, 2019 by the American Association of State Highway and Transportation Officials. (AP Photo/Rick Bowmer)