Woodpeckers Used in Study (IMAGE) Field Museum Caption These are some of the woodpeckers used in this study, in the Field Museum's collections. Credit (c) The Field Museum Usage Restrictions Please credit (c) The Field Museum 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.