Birds are well-known migrators, their majestic flocks a delight to behold as they travel with the seasons. As the northern latitudes cool, many bird species across North America head for the tropics.

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

Birds are on the move as their annual spring migration begins. Radar tracking allows you to follow along to see what birds are flying overhead as the birds move to their summer feeding grounds.

Peak bird migration is about to start in Colorado and around the country. Here are tools for tracking and identifying the ...