Perils of Migration: New evidence that bats stalk birds

Big Mediterranean bats snatch migrating songbirds out of the night sky in spring and fall, according to a new study.

NIGHT STALKER. The giant noctule bat is more than a match for a migrating songbird that weighs as little as 6 grams. The bat’s wingspan can reach 45 centimeters, and the bat can weigh 50 gm.