These durable cedar birdhouses are designed to provide a safe and inviting habitat for various small cavity-nesting birds. The interior space measures 5 in. by 4 in., offering standard dimensions suitable for attracting Eastern and Western Bluebirds. The precisely sized 1-1/2 in. entrance hole is optimized to welcome bluebirds while also accommodating other species like wrens, tree swallows, sparrows, and chickadees, thereby encouraging greater biodiversity in your garden. Constructed from rot and pest-resistant cedar, these houses are built for longevity, offering over 5 years of outdoor use. An open-door design facilitates easy cleaning and maintenance, ensuring a hygienic environment for nesting birds. The addition of a 1/32 in. thick copper plate provides protection against the elements and wear, contributing to the overall durability and functionality of the birdhouse.