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A predator guard is important for bluebird houses to help prevent or deter larger birds, squirrels, or other predators from reaching eggs or nestlings. Our solid recycled plastic predator guard will fit most bluebird houses. Made from 5/8" thick recycled lumber, and measures approximately 3-3/8" square. Predator guards are also useful for covering an existing entry hole that has been chewed out. 1-1/2" entry for Eastern Bluebirds 1-9/16" entry for Mountain or Western Bluebirds 2 screws included for easy mounting Made in the USA out of recycled milk jugs! Also available with a Copper Portal for extra protection. → Read more about bluebirds in our Bluebird Guide!
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🇺🇸 Ship from USA · On Agora since 2025
$4.75