Environment
fromwww.scientificamerican.com
1 week agoWant to help migrating birds? Turn off your lights
Artificial lights disrupt migratory birds' navigation, leading to collisions and exhaustion, contributing to their population decline.
Just after dawn in Washington, D.C., Stephanie Haley is walking a familiar downtown route, scanning the sidewalk next to office buildings. There, huddled on the ground, is a motionless olive-green songbird. It's an Acadian flycatcher, no doubt on its way to Central or South America before it slammed into a window. Haley quietly sidles up to it, gently placing a net over the bird. Then she picks the bird up, using a gloved hand.
Bats are generally viewed as harmless, if spooky, creatures of the night. But scientists have revealed a more savage side, after witnessing a greater noctule bat Europe's largest bat species hunting, killing and devouring a robin mid-flight. The grisly recording reveals the bat as a formidable predator, climbing to 1.2km (4,000ft) before embarking on a breakneck-speed dive in pursuit of its prey.