Red Trumpet-Like Flowers of Scarlet Gilia (IMAGE) U.S. National Science Foundation Caption Scarlet gilia, which attracts hummingbirds, was a subject in one "noise experiment." Credit National Park Service 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.