A vagrant Blackpoll Warbler is seen on Southeast Farallon Island in California. On a 2009 hike in the Huachuca Mountains of southeastern Arizona, a group of birders heard an otherworldly ethereal bird ...

Across the Northern Hemisphere, satellite tags and backyard observations are revealing a surprising pattern: some birds are not just drifting off course, they are consistently flying in the opposite ...

The primary reason birds migrate is survival. Most species move to find food and safe places to raise their young. In temperate or polar regions, winters are harsh and food sources such as insects, ...

CU Boulder researchers challenge long-held assumptions about the relationship between bird migration and the process by which new species arise Every year, billions of birds take to the skies, riding ...

Wood-pewees migrate from places like Upstate New York to spend their winters in Central America and northern South America. Every fall, the skies of the northeastern United States fill with warblers, ...

Millions of birds pass through and above the Champaign-Urbana area on their way to warmer southern regions during the fall and winter migration period. At its peak, migratory numbers over C-U are in ...

Millions of birds are flocking southward across Michigan each night amid their annual fall migration, and bird watchers can track their flight live. The BirdCast Migration Dashboard, a live migration ...

As the fall bird migration gets underway, bird watchers can track birds in flight across Michigan and the nation as they flock southward each night. The BirdCast Migration Dashboard, a live migration ...

Migratory birds embody some of the most intricate evolutionary adaptations in the animal kingdom, without which their journeys would be impossible. Here’s how the Pfeilstorch taught us this. In the ...

As late summer fades into autumn, Indiana’s skies transform into a living highway. Billions of birds begin their fall migration, heading south on a journey that spans hundreds — or even thousands — of ...