Crested Pigeon (image) Cell Press Share Print E-Mail Caption This is a photograph of a crested pigeon in flight. Primary feathers are spread and the narrow eighth primary is visible. Credit Geoffrey Dabb Usage Restrictions Credit Required. 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.