Bluebirds Struggle to Find Happiness on Island Paradise (image) University of Chicago Press Journals Share Print E-Mail Caption This is an Eastern bluebird (Sialia sialis). Credit Kitty Kono Usage Restrictions with credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.