Protect your nesting bluebirds from hot temperaturesAttract bluebirds to nest nearby in a well-ventilated nestbox. Features generous ventilation with 3/8 inch wide openings, so your nestlings won’t overheat in warm weather. When it rains, the built-in grooved rain guards underneath the roof on all four sides keeps the nesting area dry. Mount against any flat surface. Includes a wire grid ladder for fledglings. Made from Eastern white pine with drainage. 11-1/4 x 9-3/4 x 15-1/2 inches tall overall. 1-1/2 inch entry hole with predator guard Attract bluebirds to nest, even in warm weather climates Features generous ventilation to keep your nesting birds cool Open the side panel for easy cleanout & observation Made in the USA, available exclusively at Duncraft