They nest in holes in rocks and trees near open, grassy areas where they can hunt rodents. They are often seen in barns and agricultural fields which provide them with ample hunting sites. Barn owls hunt at night, and although they have very good vision, they rely mostly on their sense of hearing. Their heart-shaped facila disks and the location of their ears, one higher than the other, increase their sound reception.
Owls help control rodent populations.
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