Choose Natural Materials Use untreated wood like cedar or pine, avoiding metal or plastic.
Small Size Make the box about 4x4x4 inches with a small 1.5-inch entrance hole.
Add Ventilation Include small holes or gaps for air circulation.
Install Roof or Overhang Provide a roof to keep rain out and offer shade.
Provide Soft Nesting Materials Place natural materials like cotton or feathers near the box.
Mount the Box Place it 6-10 feet above ground in a shaded area, near flowers or feeders.
Clean Regularly Keep the box clean and check for predators.