purple martin (IMAGE) Colorado State University Caption "This class of birds and bats is struggling, in part due to climate change, but also changes to habitats," said Kyle Horton, assistant professor at Colorado State University. Credit Kyle Horton/Colorado State University 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.