The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.

The classic signs of spring have been appearing for weeks across the South and are gradually inching northward.

While it will still be awhile before it's time to put hummingbird feeder out in RI, in other parts of the country it's time.

Peak bird migration is about to start in Utah and around the country. Here are tools for birding and how to identify the millions of migrants.