They occasionally regurgitate owl pellets which are balls of indigestible material like animal hair and bones. They digest most of their food and excrete owl pellets which are undigested food that has passed through their digestive tract.
Asked in Owls
Do barn owls eat barn owls?
well barn owls aren't cannibalistic that i know of but barn owls may be eaten by larger owls sometimes for example the great horned owl will sometimes prey on barn owls. in times of scarce food if a hatchling dies, yes, no food is wasted, other then that barn owls usually don't eat other barn owls. ...