Please visit the Sialis.org site in this link to read the history of the bluebirds in North America. It is truly fascinating! After you read this, you’ll understand why bluebirders are so passionate to conserve and help these wonderful songbirds! The Sialis.org website is the best bluebird information site. We thank Bet Z. (the Sialis.org webmaster and bluebird expert) for her effort to keep this site ongoing and informational for both veteran and new bluebirders. We thank you and salute you!