The Minnesota Bluebird Recovery Program will be having their annual conference April 22, 2006. If you haven't been to a conference, I highly recommend you go. You can learn great tips for not only putting up bluebird houses, but also for wood ducks, purple martins, swallows and a few other species. If you are not in Minnesota, check here for contacts for the nearest BBRP in your area. There is a national Bluebird Conference, this year in Texas.