A DIY from actor, John Ratzenberger.
- Sturdy wood construction using 1" rough-cut boards or plywood (exterior-grade
- Drill 1-3/8" to 1-1/2" entrance holes to keep larger birds out.
- Entrance hole should be centered about 7" above floor panel.
- Use wood glue and 1 1/2" nails to fasten panels together
- Roof should slope down and overlap sides and fronts to reduce exposure to rain and make it harder for predators to reach inside.
- Metal hinge fastened to top panel, allows top to swing open for easy checking of box contents and cleaning.
- Floors recessed to minimize interior wetness.
- Unpainted interiors
- Roughened, kerfed, or cleated front interiors to provide nestling footholds.
- No outside perches at the entrance holes that could aid predators.
Wood Panel Measurements
Stationary Piece: 10" by 5"
Swinging Side: 11" by 5"
Front Piece with a 1.5" hole: 10" by 6.5" by 7.5"
Back with 4 small holes for mounting wires: 11" by 6.5"
Floor Piece with corners cut: 5.5" by 5.5"
Roof: 7.5" by 7.5"
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