Your Out There editor just saw this one, and I’m intrigued. Contrary to a couple of the comments from other viewers, this isn’t an insect or a bat. No animal moves like that. And I am fairly sure that it’s not a CGI effect, although I can’t be certain of that. I’d grade this as an interesting possible unknown.

Story Source:
http://www.youtube.com/watch?v=RVFUCXPMNcM#t=23