Copper Portal will fit on almost any bird house. 1 1/4" entry. Installs with the 4 included screws. Helps maintain the entry diameter and prevents predators from chewing around the opening.

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Copper Portal will fit on almost any bird house. 1 1/4" entry. Installs with the 4 included screws. Helps maintain the entry diameter and prevents predators from chewing around the opening.

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