Click here to read more about predators and predator guards. Now that you've got your house ready, you must decide where to locate it. This is as important as the house itself. Cavity nesting birds are particular about where they reside. No matter how perfect the box, if it's not in the right location birds will not find it.
Height is important in locating the house.
Pick a height that will allow you to peek inside and to keep the house clean. Houses mounted on poles are less vulnerable to predators. Put about 100 yards between bluebird boxes and 75 yards between swallow boxes. Don't locate the nest box near a feeder. Don't put more that one box in a tree, unless the tree is extremely large or the boxes are for different species.