How do barn owls hunt for rodents in grasslands?

Barn owls are nocturnal birds of prey that hunt primarily for small rodents in open habitats such as grasslands. Unlike woodland owls that often hunt from stationary perches, barn owls typically hunt by sustained flight, scanning the ground below.123

Their hunting success is heavily reliant on their exceptional hearing, which allows them to locate prey in total darkness. This ability is facilitated by the asymmetrical arrangement of their ear openings, which enables them to pinpoint the exact origin of sounds—such as the rustling of a mouse—with extreme precision. Once a target is detected, the owl drops into the grass to capture the rodent with its talons.452

This method of hunting is highly effective, as it allows the owl to strike and secure prey without the need for visual aid. After consumption, indigestible materials like fur and bones are regurgitated as compact pellets.42