Audubon's Running Grouse (IMAGE) Academy of Natural Sciences of Drexel University Caption This is a detail of Audubon’s running grouse (Heath Hen) vignette from a Fairman Draper Underwood & Co. sample sheet. The image was discovered by an Audubon authority from the Academy of Natural Sciences in Philadelphia and by a numismatic historian from St. Louis. Credit Eric P. Newman Numismatic Education Society 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.