Barn owls (Tyto alba) are not typically available for sale as pets or for private ownership, as they are protected under wildlife laws in many countries due to their ecological importance. In some regions, it may be possible to obtain a permit for rehabilitation or educational purposes, but this requires specialized training and licenses.
If you are interested in learning more about barn owls or supporting conservation efforts, you can contact your local wildlife rehabilitation organization or a nature center. There are also many excellent resources and educational materials available online to learn about these fascinating birds and their role in the ecosystem.