Weird Videos

I took some video of my little cousin when i was overseas last year on my phone. and after when i uploaded it to the computer i noticed something fly past in the background..Notice how it goes behind the wall not into the wall... very strange indeed. This video is not fake, the only thing ive done is put my you tube user name onto it. its the real deal and I don't know what it is or how to explain it. Dont bother posting stupid comments saying "its FAKE" or anything like that, I explained everything above, so you'll be blocked and your comment will be removed, so dont waste your time.