Fall migration is underway for the birds of North America and, during peak days, hundreds of millions of birds pass overhead under the cover of night. “The earliest migrants are on their way as early ...

Every spring and fall, something extraordinary happens in the sky. Without most people ever noticing, billions of birds take flight under cover of darkness. These nocturnal travelers are mostly small ...

Spring migrations runs between March 1 and June 15. Artificial lights and glass windows pose significant threats to migrating birds. Turning off unnecessary lights and adding patterns to windows can ...

Cornell University's BirdCast uses radar to track the massive nocturnal spring migration of birds. You can use the online dashboard to see live migration maps and how many birds flew over your county.

Birds are on the move as they take flight for their annual spring migration and Cornell University is looking to help people track their journeys. Radar tracking allows you to follow along to see what ...

Millions of birds are expected to soar over Michigan at night this week as migration season starts to ramp up and scientists say humans can help them by turning down, or off, outdoor lights. About 1.6 ...