Nature's Way Cedar Bluebird Viewing House is made with naturally insect and rot resistant premium Cedar and stainless steel rust-free hardware for a durable house that will last multiple seasons. This model includes a stay-clear, crack-resistant viewing window to allow for nest viewing while protecting the young. Air vents allow for proper air ventilation through wall and floor openings to promote bird health. Clean-out doors provide easy access for cleaning. An elevated mesh floor aids in the management of blowfly to protect hatchlings. An added predator guard extends the entrance hole to protect young birds against predators. Fledgling kerfs provide extra grip for the young to climb out. The innovative design can be installed with a pole mount or flush mount.