Acquire at least two similar birdhouse structures intended for bluebirds.
Take the houses to a spot at least 200 yards from occupied farms or houses. The ideal spots are trees, fenceposts or posts where the boxes can be placed about 5 feet off the ground.
Mount the two bird houses within 20 yards of each other. According to the website of the Dane County Conservation League, tree swallows won't nest within 30 feet of another tree swallow nest while bluebirds won't nest within about 100 yards of another bluebird. However, the two species will nest close to each other and the swallows won't interfere with the bluebird box.
Things You Will Need
- Metal barrier
- A shrub or bush should be within 50 feet of the front of the bluebird house. This provides a goal for the young birds on their first flight. Place a metal cone or other metal barrier below the nest box to discourage climbing predators.