posted on Nov, 22 2009 @ 08:30 AM
UFO reports also go up during solar eclipses, thunderstorms and various other atmospheric phenomenon, you can check it out on MUFON, they've got good
statistics on that.
It could be because whatever the UFO phenomenon is, it's somehow connected to these other phenomenon... or it could also be because that's when
people actually look up at the sky, with the intention of filming or photograph it.