Gavin Jones Checking Owl Tag (image) University of Wisconsin-Madison Share Print E-Mail Caption Researchers in Zach Peery's lab track spotted owl movements using mini-GPS tags fastened to a backpack harness system. Here, Gavin Jones checks the fit of a newly mounted tag. Credit Sheila Whitmore Usage Restrictions Credit Sheila Whitmore Share Print E-Mail 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.