Assembled with specific dimensions designed to replace the natural hollows and cavities found in mature trees, a homemade bluebird house will provide a safe location for bluebirds to nest and hatch their eggs.
Buy or source a 5’ x 5-1/2” x 3/4” plank of untreated wood. Pine or cedar are excellent choices, but any untreated wood will do.
Measure and cut wood to the following dimensions. Mark and cut each piece before continuing to the next. Cut List: one 14” x 5-1/2” (back); two 9” x 5-1/2” (sides); one 7” x 5-1/2” (roof); one 4” x 4-3/4” (bottom); and one 9” x 4” (front).
Once all pieces are cut, lightly sand any rough edges.
Assemble back, sides, roof and bottom using nails. Sides should be flush with the base of the bluebird house. Back should hang about an inch below the bottom. A clamp in not necessary, but can be helpful for keeping edges straight during assembly.
Drill a 1-1/2” entrance hole in the front panel centered from the sides and the top of the hole approximately 1-3/4” from the top.
Place the front on the box, leaving a 1/4” gap between the top of the front and the roof. This gap will allow the front to pivot open and also provides necessary ventilation.
Painting is not necessary, but it's a great way to add flair to your bluebird house.
If you decide to paint the bluebird house, choose a light color paint (dark colors will draw unwanted heat to the nest). Alos, don't paint the interior of the house.
Attach a small pivoting catch at the bottom edge of the door to keep it from swinging open. A bent nail will work. Here we have used a tack intended for securing electrical wires.
Mount the box at a height of at least five feet near open land, but within 100 feet of shrubs, trees or other locations where birds may perch. Multiple boxes are encouraged at distances of 50 to 100 yards.