Cavity-nesting birds, such as bluebirds, woodpeckers, wrens, chickadees and owls, look for nesting sites that are enclosed, with a small hole to enter and leave the nest. A plastic 2-liter bottle can be recycled to create a birdhouse for cavity-nesting birds.
Tips & Warnings
Late winter is the best time to hang birdhouses. Cavity-nesters begin hunting for houses as early as January or February.
Make sure the birdhouse is secure and can't be tipped by a strong wind or predators, such as cats and raccoons.