Bluebird houses are constructed of 6 inch schedule 40 PVC pipe with a 1.5 inch predator guard entrance. The roof is constructed of durable material. The house is painted with three coats of oil-based paint. Both the top and bottom are attached by easily removable aluminum pegs for convenient cleaning and maintenance. The slanted roof and predator guard guarantee a weather-resistant, predator-proof home for your Bluebirds.
The Bluebird Houses have a White Birch color and are available in 1 inch steel post mount.
A Nesting Boxes Mfg. Bluebird House should be placed in an area of short grass or an open field. Roadsides, orchards, farmyards and open woodlands are ideal. Position the 1 inch pipe at least 40 yards from a tree or shrub. Attach the house to the pipe, 4 to 5 feet above the ground. If sparrows bother the house, lower it about a foot; sparrows prefer not to nest so close to the ground.
Bluebirds are territorial. If more than one house is used in an area, place them at least 50 yards apart. If Tree Swallows and Wrens frequent the house, place another near the first. Bluebirds will share territory with other birds, but not other Bluebirds.
Bluebirds nest from April to July, raising multiple clutches, of 4 to 6 nestlings each, in a season. At the beginning of the nesting season, monitor the house weekly for sparrow occupation. Remove the two aluminum side pins to open the top. If sparrows are present, remove the nest and continue to monitor. If Bluebirds are the occupants, monitor the nest weekly for blowfly infestation. Remove any that are found and destroy them away from the nest. After each Bluebird clutch has been raised, remove the old nest. This helps to keep the site free of all parasites.