The common Barn Owl usually nests in a cave or hollow tree. An owl is a type of bird that usually lives alone and hunts at night. Owls can fly fairly fast. Their feathers muffle the swishing sound that most birds make when they fly. An owl can swoop down on its prey unheard.
Some owls can see well enough in the day time to hunt by day as well by night.
Barn owls are more nocturnal than other owls. They wait until dark before starting out to hunt, except, when the their young are hungry, then they may start their hunting at twilight. There are ten species of barn owls. They are about 46 centimeter. That's pretty small for an owl.