White-ruffed Manakins (IMAGE) University of Guelph Caption Two adult male White-ruffed Manakins are shown here perched above their lek at Rara Avis, Costa Rica. Credit David Vander Plyum 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.