White-Tailed Ptarmigan (IMAGE) Colorado State University Caption Ptarmigan are grouse that live in cold ecosystems, such as alpine and tundra habitats. Credit Cameron Aldridge, Colorado State University and U.S. Geological Survey 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.