This is one of Nostradamus' wacky prophecies. He dated it as the middle of July, 1999. A few years ago, lots of really smart people were talking about this prophecy and things like Soviet warplanes and the end of the world in the same breath.

I checked yesterday, and Paris seems to be fine, and no one I talked to on the streets had any knowledge of an inexorable battalion of destructive birds bearing down upon the city from the east.

This is also the title of a song by the band Coil off their latest album, Musick to Play in the Dark.