House Sparrows (AKA English Sparrows) Do Not Like Monofilament Fishing Line

How to Keep Sparrows Off Your Birdfeeder · Share Your Repair

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How to Deter House Sparrows with Fishing Line [Illustrated Guide] - Bluebird Landlord

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Young tree sparrow hi-res stock photography and images - Alamy

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How to Deter House Sparrows with Fishing Line [Illustrated Guide] - Bluebird Landlord

How to Put Monofilament Line On Your Nest Box/Birdhouse (Fishing Line)

Rollerfeeder - Preventing and controlling house sparrows in your bird feeder.