Those are the iconic UFO stories. But one shouldn't discuss UFO-related phenomena without at least referencing Gulf Breeze. The story starts with pictures, but ends with an object found in an attic.
Later, it turned out that the dead grass circles matched the diameter of his patio table and the UFO model had been superimposed in those photographs.
I found the naïveté of adults really disturbing.
You can also watch many military and government witnesses in the Out of the Blue documentary https://www.youtube.com/watch?v=cYPCKIL7oVw
A lot of these things are military aircraft. In my region, there were a lot of UFO sightings that were Tomahawk missile terrain navigation system testing.