UFO Sighting in Alaska on 2017-07-14 00:00:00 - On tv

Dear sir i was re-watching a show from the history channel ( the mountain men) and i saw something puzzling. the show first aired 6-29-2017 named,"hard luck" in filming the show within the first 2 minuts, when the camera is looking at the helo's speedo then the camera looks at the mountain,watch carefully,in the clouds is a big ufo.Clouds do not form straight lines. thks