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 ...

Researchers in the South want people to report Monarch butterfly sightings this winter as more butterflies seem to skip the long migration to breeding grounds in Mexico. Millions of monarch ...

Whether it’s political leaders like Donald Trump expressing concern about immigration, or individuals forced to leave their homes due to conflict, the movement of people across borders—and where they ...

I looked up on the last day of July at the sound of purple martins, and instead of a swirling flock of feeding birds, I saw a line of the giant swallows flying south toward their winter home, perhaps ...

New research shows that socio-economic factors play a larger role in migration than climate. While public discussions often focus on climate change driving people to emigrate, new research published ...

Pictured: Richard's pipits (Anthus richardi) are migrating on an east to west axis instead of heading south towards warmer latitudes. JJ Harrison via Wikimedia Commons under CC BY 3.0 Each year birds ...

Millions of monarch butterflies are making their way down the east coast to Mexico for the winter. Huh, wonder if they're looking for BJ Leiderman, who writes our theme music. But as Georgia Public ...