This still from footage shot by “John Bro” Wilkie shows a disquietlingly large example of a “rod,” a phenomenon in the overlapping fields of ufology and cryptozoology. On the other hand, it could just be a bug flying close to the camera.
This file was saved from the website of Jose Escamilla, discoverer of rods, which doesn’t feature it anymore. Escamilla and Wilkie had a falling-out. The former champions the notion that this and similar images show atmospheric life forms that normally fly too quickly to be seen by the human eye, while the latter is convinced that his footage shows an advanced alien spacecraft that merely resembles a living thing.
Google “John Bro” Wilkie some time if you really want to go down a rabbit hole.