262 million birds forecast to take to the skies tonight

BirdCast can help you follow their fall migration. Breakthroughs, discoveries, and DIY tips sent every weekday. Open up the weather radar and you might see what looks like precipitation when it's not raining at all. Those bright green spots are often birds during their annual fall migration -and you can follow along. According to BirdCast, 262 million birds are predicted to hit the skies tonight alone.