I made a purple martin house once many years ago from plywood. It was very heavy, and the instructions said to mount it 20 feet above the ground. I couldn't find a pole strong enough to hold it without it swaying, so I only used a 12 foot pole. Never had a purple martin or any other bird go into the house. I did see a cockroach in it once. My house had 12 apartments, but I never collected any rent, so I lost about $150 on wood, nails, paint, roof shingles, and a steel pole. My advice would be that, if you buy one, make sure that you can get a pole that is strong enough to support it in the wind. If the house is not high enough, the birds won't come. I hope you have better luck than I did.
Last edited by retiredguy123; 02-25-2020 at 03:28 PM.
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