Sizing your owl’s nest box To build an owl’s nest box ... For larger owls, like barn owls, the opening should be about seven inches square. Smaller owls can use an opening as small as four ...

barn owl, long-eared owl, and short-eared Owl. A nesting box isn't right for every owl. According to the nonprofit the Owl Research Center, some large owls such as the Great Horned Owl may be too ...

A nesting box isn't right for every owl. Great horned owls prefer trees because their nests are so big. Small and medium sized owls, such as the screech owl and the barn owl, are better fits for ...

But small and medium sized owls, such as the screech owl and the barn owl, are literally better fits for nesting boxes. Rhode Island even has a volunteer-run nesting box program for barn owls.

Who wants to hear an owl? Who wants to build homes for an owl ... in Indiana in particular that benefit from nesting boxes, all of which are species that nest in cavities. First there is the barn owl, ...