Nesting a pair of barn owls in your backyard can bring a wealth of benefits, from natural pest control to the enchanting sight of these magnificent creatures in flight. Building a barn owl house, or a "barn owl box," is a rewarding project that combines practicality with the joy of wildlife conservation. Let's delve into the step-by-step process of constructing an ideal home for these fascinating birds.
Before we begin, it's crucial to understand that barn owls are protected by law in many regions. Always check local regulations and obtain any necessary permits before proceeding. Additionally, ensure your owl box is placed at least 10-15 feet above the ground, on a sturdy structure like a pole or a tree, and faces open space to allow for easy entry and exit.
Gathering Materials and Tools
To build a barn owl box, you'll need a few essential materials and tools. The primary material is exterior-grade plywood, which provides durability and insulation. You'll also need exterior-grade screws, a jigsaw, a drill, a tape measure, a pencil, and safety gear such as gloves and goggles.
For a standard barn owl box, you'll need approximately 1/2 sheet of 3/4" thick exterior-grade plywood. The box should measure about 18" x 18" x 24", with an entrance hole of 4" in diameter. These dimensions provide ample space for a pair of barn owls and their chicks.
Designing the Box
Begin by sketching the design of your barn owl box. The box should have a square base and a pitched roof to facilitate rainwater runoff. The entrance hole should be positioned near the top of the box, at least 12" from the bottom, to deter predators from entering.
Consider adding a landing platform at the base of the box to provide a safe space for the owls to rest and perch. This can be achieved by extending the front and sides of the box to create a small shelf. Additionally, you can install a removable panel at the bottom of the box for easy cleaning and maintenance.
Cutting the Pieces
Using your jigsaw and following your design, cut the pieces for the barn owl box. You'll need two side panels, two end panels, a front panel, a back panel, and a roof panel. The front panel should have the entrance hole cut out, and the back panel should have an opening for the removable cleaning panel.
Cut the landing platform pieces if you've decided to include one. These should be slightly smaller than the base of the box to allow for easy attachment. Ensure all edges are smooth and free of splinters to prevent injury to the owls.
Assembling the Barn Owl Box
Begin assembling the barn owl box by attaching the side panels to the end panels using exterior-grade screws. Ensure the box is square by measuring diagonally from corner to corner and adjusting as needed.
Attach the front and back panels, ensuring the entrance hole and cleaning panel opening are correctly positioned. If you've cut pieces for a landing platform, attach them now, securing them to the front and side panels.
Installing the Roof
The roof panel should be cut with a slight pitch to facilitate water runoff. Attach it to the top of the box using screws, ensuring it's securely fastened but allows for easy removal if necessary.
To provide ventilation and help regulate temperature, drill a few small holes in the roof and sides of the box. These should be no larger than 1/4" in diameter to prevent predators from entering.
Finishing Touches
Give your barn owl box a final once-over to ensure all screws are secure and there are no sharp edges. You can paint the box with a non-toxic, exterior-grade paint to help it blend with its surroundings or stand out, depending on your preference.
Before installing the box, consider adding a layer of insulation to the interior. This can be achieved using materials like straw or wood shavings, which also provide a natural nesting material for the owls.
Installing and Maintaining the Barn Owl Box
Once your barn owl box is complete, it's time to install it in a suitable location. As mentioned earlier, this should be at least 10-15 feet above the ground, on a sturdy structure, and facing open space. Use a pole or a tree with a suitable branch for attachment.
Secure the box using straps or brackets, ensuring it's stable and won't sway in the wind. Barn owls prefer boxes that are securely attached and don't move around.
Monitoring and Maintenance
Barn owls typically nest between February and July, so it's best to install your box before this period. Once the owls have moved in, it's essential to monitor the box periodically to ensure they're thriving and to clean it out after the nesting season.
To clean the box, remove the roof or the bottom panel (if you've installed one) and clear out any nesting material, feathers, and debris. This helps prevent the buildup of parasites and diseases. Be sure to wear gloves and a mask when cleaning to protect yourself from any potential hazards.
Providing a safe and comfortable home for barn owls is a rewarding way to contribute to wildlife conservation. By following these steps and creating an ideal barn owl box, you're not only helping these magnificent birds but also inviting a touch of magic into your backyard.