If you’re heading to the Grand Canyon this summer, leave the drone at home. The National Park Service announced Friday that it had banned the use of drones in all of its parks. Jonathan Jarvis, the agency’s director, said in a statement that the decision stems from “serious concerns about the negative impact that flying unmanned aircraft is having in parks.” Drones were prohibited in other national parks earlier this year after complaints regarding noise and an episode involving young sheep getting separated from adults. In May, the agency said that drones were banned in Yosemite National Park because an increased number of visitors had been using drones to film climbers and capture other aerial footage. Drones would not be allowed because they could disturb visitors, adversely impact wildlife in the area and potentially interfere with emergency rescues, the Park Service said.