NOTE: All pieces in the plan above are cut from 1/2" plywood. Top of box is hinged to allow clean-out after young have fledged.

The Barn Owl pair does not build a nest in the box, but owl pellets may accumulate. Laying of the 4-9 egg clutch may occur at any time of the year. Barn Owls typically cannibalize their young if the nest box is disturbed from one week before to three weeks after eggs hatch. Incubation takes 21-24 days, but eggs are not always laid on consecutive days; this makes it difficult to predict hatching dates.

Even if you put up a nest box you may never see the Barn Owl pair that uses it. Regardless, you will know you provided an artificial cavity to supplement those that are increasingly more difficult for owls to find in nature.

Please send a message to RESEARCH if you use these plans and/or attract Barn Owls to your nestbox.

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