Every spring, migratory birds arrive in the continental United States from south and central America to breed. But precisely when they arrive each spring varies from year to year. In a NASA-led study ...

Every year, approximately 7 million birds migrate through the city of Chicago as they travel the Mississippi Flyaway, one of the primary migration routes for North American birds. However, for these ...

Researchers are documenting notable shifts in bird migration and behavior across the U.S., with some species traveling in unexpected directions or altering activity times. Factors range from climate ...

Avian influenza (bird flu) is a highly contagious disease of wild and captive birds. Controlling its spread remains a major ...

Wading bird numbers in the Florida Everglades are driven by water patterns that play out over multiple years according to a new study. Previously, existing water conditions were seen as the primary ...