Most migrants fly after sunset to save energy and avoid predators. Use dark skies, simple gear, and forecasts to witness the flow. The post A Massive Bird Migration Happens at Night, Here’s How to ...

For the first time, scientists documented direct evidence of a bat preying on a bird at high altitude. During spring and fall migrations, billions of birds take to the night skies. The high-altitude ...

The bat—a greater noctule (Nyctalus lasiopterus)—was equipped with a high-tech tag recording its behavior. “There was this ...