f you have had your barn owl nest box up for a couple of years with no barn owl action to speak of, there are a few things you might be able to modify to encourage them to nest. Every barn owl population is responding to different pressures in its habitat, so while some may be perfectly content nesting in a traffic heavy area, others might be more sensitive. They are also sensitive to other birds of prey and other predators in the area, as great horned owls, corvids, and hawks will kill them. If

Owl Sounds

There’s more to owl sounds... - American Bird Conservancy