Bird Migration: The Journey for Food and Breeding

Birds migrate to find food and breed, with distances varying by species. They prepare by storing fat, sometimes doubling their body weight. Migration timing differs, with soaring birds traveling by day and songbirds by night. Birds navigate using landmarks, the sun, and stars. Not all owls are nocturnal; some hunt during the day.

Why do some birds migrate at night?

What navigational aids do birds use during migration?