Most birds sleep at night. Owls do the opposite. They rest in the day and hunt after dark.

An owl has very large eyes. Big eyes let in more light, so an owl can see a mouse on a dark night.

An owl hears well too. Its ears are not the same height on its head. One ear is a little higher than the other. The sound of a mouse reaches one ear first. That small difference tells the owl where to look.

Owl feathers have soft edges. The soft edges make the wings quiet. A mouse does not hear the owl until it is too late.