My third driftwood birdhouse and I went a bit crazy but had a fun time adding more pieces and making it a little larger, not so much on the inside as I did building up the various pieces of driftwood on the outside.
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Driftwood Birdhouse #2
For my second driftwood birdhouse, I started with a piece of driftwood that already had a knothole just the right size! All I had to do is sand it down just a little and a chickadee or wren could fit safely through the hole. Larger birds cannot fit so…a peaceful and safe home for little birds.