This year's migration is already breaking records! For avid birdwatchers, fall migration can be quite a show, as millions of birds travel to warmer winter homes—whether it's just a few hundred miles ...

Millions of birds are expected to fly over the U.S. to reach their migratory destinations, and a sizeable fraction of them will pass through Michigan after the sun goes down on Sept. 29. Late on ...

The annual migration south for monarch butterflies peaks in late September. Here's how to watch for the regal butterfly.