This object might be a bird. If not, there's a slight probability that it's an object of unknown origin. Here's a link to an Image I have extracted from a frame of the video:
This is probably an object of unknown origin. If it is within or behind the clouds, it seems to be very large, too big for a bird. It might be a plane. It might (slight probability) be a water droplet moving down the window.
This is probably an object of unknown origin. I have extracted closeups (enlargements) from frames of this video. Please see my blog post at: