The U.S. National Park Service says drones are not welcome . Yosemite National , in California , said they 're being used to shoot video . Drones make noise and can disrupt delicate wildlife , parks say . Comment:
The U.S. National Park Service says drones are not welcome . Yosemite National , in California , said they 're being used to shoot video . Drones make noise and can disrupt delicate wildlife , parks say . YouTube shows a host of drone videos from Yosemite .