Bird Habitats Sparrow Resistant Bluebird House

* Sparrow Resistant Design: This Kentucky style bluebird house features a slot entrance, preferred by bluebirds and designed to deter sparrows, based on University of Kentucky research. * Shallow Box Depth: With a depth of only 5 inches, and an included wooden insert to reduce it further to 3.5 inches, this design is less appealing to sparrows while still suitable for bluebirds. * Optimal Ventilation & Drainage: The nest box is designed with appropriate ventilation and drainage to ensure a healthy environment for bluebirds. * Easy Maintenance: The house opens easily for convenient clean-out, promoting reusability and hygiene. * Durable & Insulating Material: Crafted from sustainably grown 1-inch thick Eastern White Pine, providing superior insulation and long-lasting durability. * Handcrafted in Maine: Proudly handcrafted in Maine, ensuring quality and attention to detail. * Manufacturer Warranty: Repair or replacement of any manufacturing or material defects upon return of the defective item to Coveside Conservation Products.