If you see what appears like the flashing red and blue cloroed lights of the plane within the evening sky think of this:

Video uploaders comments:

UFO may 5, 2011, 3:33am, EST, Kitchener, Ontario THE ALIENS MIMIC PLANES! The lights look like a plane, but hit the pause button a couple of times, this is no plane. Seriously, we're dealing with a much higher technology, this thing was big but silent, the stills show details like I have never seen on a plane.