Barn Swallow Defies Gravity - Mid-Air Perch? - YOU TELL ME!

Well, yeah ... missing something here, right? When I looked up from the porch chair and saw this, I began glancing around for Rod Serling. Honestly figured it out in a few seconds as being ultimately responsible for innocently setting up the startling illusion. Camera has better resolution than my eyes so grabbed it and ... say WHAT?