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Tag Archives: protect bluebirds from squirrels

Portal Guard

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That round metal guard around the birdhouse hole is called a portal guard or portal protector. They come various sizes. The one shown is for bluebirds and is 1 1/2″ in diameter. The object of the guard is to keep animals such as squirrels from enlarging the hole and thus endangering the chicks. They’re easy […]

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