8 Pack bird houses for outside : Our 8-piece outdoor birdhouse set is meticulously made using high-quality wood, featuring a sturdy structure and natural wood grain finish that adds an earthy charm to your outdoor space. Specialized design, accommodating various bird species: The 1-1/2-inch entrance hole is tailored for small bird species such as bluebirds, wrens, finches, and swallows, providing a safe and comfortable habitat. Safe Haven for Your Aviary Friends: Equipped with metal guards and safety locks, the bluebird houses for outdoors effectively deter predators and ensure the safety of birds. Well-ventilated, suitable for all seasons: Thoughtfully designed ventilation holes and flight slots maintain air circulation, making this bluebird house suitable for year-round use and providing a comfortable living environment for birds. Easy to install, simple to maintain: The compact size facilitates placement and installation, while the natural wood tone blends seamlessly into various outdoor settings. The blue bird nesting box is measuring 5.52" L x 5.52" W x 9.85" H, these bird houses are compact yet spacious enough for nesting. Product specifications： Quantity：8pcs Material: High-quality, weather-resistant wood. Dimensions: Compact for versatile placement. Entrance: 1-1/2" for small birds. Ventilation: Strategically designed for air circulation. Safety: Metal guards & safety locks for predator deterrence. Aesthetic: Natural wood grain for rustic charm. Seasonal Use: All-year suitability.