Christmas Boobook (IMAGE) University of Queensland Caption The Christmas boobook (Ninox natalis), also known more specifically as the Christmas Island hawk-owl, is one of the island's rare species, featured on a postage stamp. Credit Australia Post Usage Restrictions None License Licensed content 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.