Bullock/Baltimore Oriole Hybrid (IMAGE) Cornell University Caption Bullock/Baltimore Oriole hybrid. Credit Bryan Calk, Macaulay Library, Cornell Lab of Ornithology Usage Restrictions For use with this story onl. 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.