White-necked Jacobin plumage (IMAGE) Cornell University Caption The left and center images show adult female and adult male plumages, respectively. Right image shows juvenile plumage. Credit Artwork by Jillian Ditner, Cornell Lab of Ornithology. Usage Restrictions Only for use with stories about this research. 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.